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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Middlesex County, Connecticut, USAi
Regional Level Types
Middlesex CountyCounty
ConnecticutState
USACountry

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08891760017695355043107.jpg
T. D. Porter's Localities of Minerals on the Connecticut River

Middlesex County, Connecticut, USA
04348720017459324422686.jpg
The Old Lead Mine

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
07719240017698977471301.jpg
Gem Hunting Advertisement

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
07041220017695350205372.jpg
T. D. Porter's Localities of Minerals on the Connecticut River

Middlesex County, Connecticut, USA
06685220017419774536414.jpg
The Old Lead Mine

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
02020580017272023234921.jpg
Gem Hunting Advertisement

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
08891760017695355043107.jpg
T. D. Porter's Localities of Minerals on the Connecticut River

Middlesex County, Connecticut, USA
09424510017419774534298.jpg
The Old Lead Mine

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
Neighbouring regions:
New Haven County, Connecticut, USA
Hartford County, Connecticut, USA
New London County, Connecticut, USA
Type:
County
Largest Settlements:
PlacePopulation
Middletown46,756 (2017)
Cromwell13,750 (2017)
Old Saybrook10,627 (2017)
East Haddam9,042 (2017)
Portland5,862 (2017)
Lake Pocotopaug3,436 (2017)
Mindat Locality ID:
15902
Long-form identifier:
mindat:1:2:15902:6
GUID (UUID V4):
0
Other Languages:
View 30 more...
French:
Comté de Middlesex, Connecticut, États-Unis
German:
Middlesex County, Connecticut, Vereinigte Staaten
Italian:
Contea di Middlesex, Connecticut, Stati Uniti d'America
Russian:
Мидлсекс, Коннектикут, Соединённые Штаты Америки
Simplified Chinese:
米德爾塞克斯郡, 康乃狄克州, 美国
Spanish:
Condado de Middlesex, Connecticut, Estados Unidos
Albanian:
Middlesex County, Connecticut, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة ميدلسكس, كونيتيكت, الولايات المتحدة
Armenian:
Միդլսեքս շրջան, Կոնեկտիկուտ, Ամերիկայի Միացյալ Նահանգներ
Basque:
Middlesex konderria, Connecticut
Bavarian:
Middlesex County, Connecticut, Vaoanigte Stootn
Bishnupriya Manipuri:
মিডলসেক্স কাউন্টি, কানেকটিকাট, তিলপারাষ্ট্র
Bulgarian:
Мидълсекс, Кънектикът, Съединени американски щати
Cebuano:
Middlesex County, Connecticut
Czech:
Middlesex County, Connecticut, Spojené státy americké
Dutch:
Middlesex County, Connecticut, Verenigde Staten
Farsi/Persian:
شهرستان میدلسکس، کنتیکت, کنتیکت, ایالات متحده آمریکا
Hungarian:
Middlesex megye, Connecticut, Amerikai Egyesült Államok
Indonesian:
Wilayah Middlesex, Connecticut, Amerika Serikat
Irish Gaelic:
Contae Middlesex, Connecticut, Stáit Aontaithe Mheiriceá
Japanese:
ミドルセックス郡, コネチカット州, アメリカ合衆国
Low Saxon/Low German:
Middlesex County, Connecticut, USA
Min Dong Chinese:
Middlesex Gông, Connecticut
Norwegian:
Middlesex County, Connecticut, USA
Polish:
Hrabstwo Middlesex, Connecticut, Stany Zjednoczone
Portuguese:
Condado de Middlesex, Connecticut, Estados Unidos
Romanian:
Comitatul Middlesex, Connecticut, Statele Unite ale Americii
Serbian:
Округ Мидлсекс, Конектикат, Сједињене Америчке Државе
Serbo-Croatian:
Middlesex County, Connecticut, Sjedinjene Američke Države
Swedish:
Middlesex County, Connecticut, USA
Turkish:
Middlesex County, Connecticut, Amerika Birleşik Devletleri
Ukrainian:
Міддлсекс, Коннектикут, Сполучені Штати Америки
Urdu:
مڈلسیکس کاؤنٹی، کنیکٹیکٹ, کنیکٹیکٹ, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Middlesex, Connecticut, Chủng Quốc Hoa Kỳ
Waray:
Condado han Middlesex, Connecticut, Estados Unidos
Western Punjabi:
مڈلسکس کاؤنٹی, کنکٹیکٹ, امریکہ


Middlesex County is a county in the south-central part of Connecticut, USA, bracketing the southeastern Connecticut River valley and including coastal lowlands along Long Island Sound. The county is characterized by rugged terrain, river valleys, and hills, with elevations generally modest compared to interior New England. The Connecticut River is a dominant geographic feature that serves as a navigation route to the interior. It is the only major river in New England without a city at its mouth. Coastal areas feature tidal marshes and estuaries, while inland terrain rises gradually toward the Appalachian uplands.

Geologically, Middlesex County lies within the New England Appalachian region and includes metamorphic, igneous, and sedimentary rocks. Most of the bedrock consists of gneisses, schists, and granitic intrusions of Proterozoic to Paleozoic age, formed during multiple orogenic events including the Taconic, Acadian, and Alleghanian orogenies. The northwest part of the county includes Mesozoic sedimentary and volcanic rocks of the Hartford Basin, part of the Newark Supergroup, comprising red sandstones, shales, and basalt flows related to early rifting of Pangaea. Glacial till, lake sediments, outwash deltas and river alluvium blanket much of the bedrock geology.

Mineral resources in Middlesex County include building stone, traprock (basalt), sand, and gravel and pegmatite mining. Basalt from Jurassic lava flows is quarried locally for construction and road material, while granitic and gneissic rocks were used as dimension stone. A major pegmatite mining district was situated mostly in Portland, E. Hampton, Haddam, and in the White Rock area of southeastern Middletown where quarries reaching up to 1 km long. Gem tourmaline and beryl and other collectible minerals were obtained from several rare-element pegmatites.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

254 valid minerals. 1 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 14 erroneous literature entries.

* - Minerals that have never been found, but their existence is inferred in some way (e.g. from pseudomorphs)

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite ?
Formula: Ag2S
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Localities: Reported from at least 18 localities in this region.
Habit: elongated prismatic
Colour: olive green
Description: Vein of crystals, originally enclosed in calcite, to about 1 cm, from a localized alteration of host amphibolite.
ⓘ Aegirine
Formula: NaFe3+Si2O6
Colour: greenish
Description: Accompanies black hastingsite
ⓘ Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 87 localities in this region.
Habit: anhedral but in large cleavable masses
Colour: white to pale green
Description: Gemmy and in large cleavable masses.
ⓘ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
Localities: Reported from at least 11 localities in this region.
Habit: tabular
Colour: white to colorless
Description: Significant component of the pegmatite. Excellent crystals, an inch or more in diameter, have come from cavities.
ⓘ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 8 localities in this region.
Habit: anhedral but in large cleavable masses
Colour: white to pale green
Description: Gemmy and in large cleavable masses.
ⓘ Albite var. Peristerite
Formula: Na(AlSi3O8)
ⓘ 'Alkali Feldspar'
ⓘ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Habit: elongated prisms
Colour: black, very dark brown
Description: Very sharp terminated crystals crystals, up to half an inch in diameter and five or six inches in length, accompany pink fluorite. Massive material also occurs, intergrown with quartz, bastnaesite, pyrite, chalcopyrite, and white to greenish plagioclase (commonly stained brown). The allanite is not very radioactive and was identified by an x-ray diffraction test by Mary E. Mrose of the U. S. Geological Survey. She indicated that it gave an exceptionally clear pattern. It was obviously non-metamict, in keeping with its unaltered appearance and virtual lack of radioactivity. Note: Schooner misidentified these as staurolite in Zodac (1940).
ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ Alleghanyite
Formula: Mn2+5(SiO4)2(OH)2
Colour: reddish
Description: Found by Dick Schooner. A segregation over a foot in diameter, it consisted mainly of reddish alleghanyite and pinkish kutnohorite, with accessories. Unfortunately, only a few specimens were saved.
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 55 localities in this region.
Description: Not tested, but species probably almandine, as most schist-hosted garnets in Connecticut have proven to be. Crystals to 1-2 inches.
ⓘ 'Almandine-Spessartine Series'
Habit: trapezohedral
Colour: dark maroon with black coating
Description: Crystals to 4 inches. Referred to by Schooner as spessartine, but most likely impure almandine based on XRF analyses of many other district pegmatitic garnets.
ⓘ Amblygonite
Formula: LiAl(PO4)F
Description: Re-identified as montebrasite.
ⓘ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
Habit: trapezohedra
Colour: white
Description: Very late crystallizing with fluorite and siderite in pockets of K-rich albite and cleavelandite of the inner mineralized zone.
ⓘ Anatase
Formula: TiO2
Habit: crude to perfect elongated bipyramidal
Colour: metallic to honey-brown
Description: Tiny micro-crystals <1 mm crudely to perfectly crystalline and appear metallic on the crystal surfaces, broken ones reveal honey-brown, resinous interior. Associated with cubic pyrite and chlorite crystals in spaces between vuggy albite in host schist Alpine-type openings. Schooner (circa 1985) reports: "A micromount of anatase and rutile crystals, associated with adularia, was once collected at the Strickland quarry. Narrow alpine-type veins are encountered in the schist adjoining the pegmatite."
ⓘ Anglesite
Formula: PbSO4
ⓘ Anhydrite
Formula: CaSO4
Habit: tabular
Description: Like at most trap rock localities, anhydrite crystallized early in the paragenesis in fractures and vesicles, but then dissolved away. Tabular molds in later-forming mineral assemblages (quartz, calcite, datolite) reveal its former presence.
ⓘ Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Habit: coatings
Colour: bright to pale green
Description: waxy, pale to bright green coatings on ore-bearing host rocks, particularly around bronze nickeline grains.
ⓘ Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Localities: Reported from at least 39 localities in this region.
Colour: black
Description: Formerly known as biotite. Williams (circa 1945) notes "large masses".
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
Description: The references provide no details, but anorthite is a component of the diabase dike exposed in the cut.
ⓘ Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Description: The references provide no details, but anorthite is a component of the diabase dike exposed in the cut.
ⓘ Anthophyllite
Formula: ◻Mg2Mg5(Si8O22)(OH)2
Localities: Reported from at least 9 localities in this region.
Habit: prismatic
Colour: dark green
Description: As pure layers cm thick and as isolated to radial sprays of crystals to several cm long in a granular quartz-albite matrix.
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ 'Apophyllite Group'
Formula: AB4[Si8O20]X · 8H2O
ⓘ Aragonite
Formula: CaCO3
Localities: Reported from at least 6 localities in this region.
ⓘ Arrojadite-(KFe) ?
Formula: (KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2
Description: reported by Dick Schooner, no details in the reference.
ⓘ Arsenolite ?
Formula: As2O3
Habit: micro-crystalline coatings
Description: Reported as microcrystallized coatings on arsenopyrite and quartz at Shepard's Lode. Scorodite is intimately associated; at times in botryoidal crusts that are almost sub-translucent.
ⓘ Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 9 localities in this region.
ⓘ Arsenopyrite var. Danaite
Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Habit: massive, striated aggregates
Description: The arsenopyrite is not the Co-Ni ore, earlier references to and analyses of "danaite" are probably from confusion with the loellingite ore veins.
ⓘ Augelite
Formula: Al2(PO4)(OH)3
Colour: gray
Description: Specimens of metasomatically altered natromontebrasite, collected at the Strickland quarry around 1950 by Charles Thomas, consist of gray augelite crystals intergrown with pink brazilianite, pink hydroxylapatite, and yellow lacroixite. Very little such material was preserved, and most of it was consumed in study at the U.S. Geological Survey. Natromontebrasite was discredited in 2007, being a mixture of montebrasite, lacroixite, and wardite.
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Habit: short prismatec
Colour: black
Description: With anorthite one of the two major rock-forming constituents of the basalt and normally very fine-grained and not of collector interest. However, euhedral phenocrysts to about 1 cm rarely occur.
ⓘ Augite var. Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Habit: massive granular
Colour: brown
Description: "A striking brown clinopyroxene, with a silky luster, collected at the Strickland quarry, gives an X-ray pattern closer to fassaite than diopside or augite. As learned from similar material, at the railroad cut two miles west, the surficial alteration is a smectite, corroborating the aluminum content. Fassaite also accompanies zoisite, quite abundantly, at ledges immediately west of the Strickland quarry." Schooner (circa 1985).
ⓘ Augite var. Titanium-bearing Augite
Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
ⓘ Aurichalcite ?
Formula: (Zn,Cu)5(CO3)2(OH)6
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
Localities: Reported from at least 16 localities in this region.
ⓘ Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Habit: axe head shaped
Colour: lavender, purplish brown
Description: According to Schooner, occurs with tan titanite and pink feldspar. A specimen in the Bill Henderson micromount collection at Yale Peabody Museum consists of white albite matrix hosting a small void partially filled with purplish-brown, glassy axinite crystals (mislabeled as titanite) and tiny vermiform chlorite.
ⓘ 'Axinite Group'
Description: Included in a list copied from Schooner (1958) but with no supporting details. May have occurred in the calc-silicate vein found in the gneissic wall rock.
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
Habit: crust
Colour: light blue
Description: A few scanty crusts of light blue azurite, with malachite and chalcopyrite, on amphibolite (Schooner, circa 1985).
ⓘ Babingtonite
Formula: Ca2Fe2+Fe3+Si5O14(OH)
Habit: complex prisms
Colour: black
Description: Micro crystals, but very specular and well formed.
ⓘ Baryte
Formula: BaSO4
Habit: cleavable masses
Colour: white
Description: White cleavages, up to two inches broad, accompanied tirodite in the spessartine lens at the Jail Hill quarry in Haddam. This was X-rayed for verification.
ⓘ Bastnäsite-(Ce)
Formula: Ce(CO3)F
Habit: thin, irregular plates
Colour: brown, reddish-brown to yellowish-tan
Description: Irregular thin plates, as much as two or three inches across and a half of an inch thick, are intimately associated with massive allanite, white to greenish plagioclase, pink to purple fluorite, chalcopyrite and pyrite. Some may be altered to gray lanthanite?
ⓘ Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
Habit: blades, needles, platey, massive, in hemispherical and 2-D radiating aggregates
Colour: white to pale green
Description: probably the best material for the species in Connecticut.
ⓘ Bazzite
Formula: Be3Sc2(Si6O18)
✪ Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Habit: pseudomorphs after uraninite
Colour: yellow
Description: "A soft yellow pseudomorph after a uraninite crystal was X-rayed, and proved to be becquerelite." Schooner (circa 1980s).
ⓘ Bementite ?
Formula: Mn7Si6O15(OH)8
Description: Reported by Dick Schooner, reference gives no details.
ⓘ Beraunite
Formula: Fe3+6(PO4)4O(OH)4 · 6H2O
Habit: coatings
Colour: green
Description: reported by Dick Schooner, no details in the reference. Visually identified by Van King from posted photographs but an XRD test made in the National Museum Prague (dr. Jiri Sejkora) of the green material with some matrix found "no beraunite but something similar to messelite" and apatite, which are the matrix species. EDS analysis shows green mineral is mitridatite.
ⓘ Bertrandite
Formula: Be4(Si2O7)(OH)2
Localities: Reported from at least 14 localities in this region.
Habit: Hemispherical aggregates and 2-dimensional sprays of radiating, acicular crystals
Colour: white
ⓘ Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 66 localities in this region.
Habit: elongated hexagonal prisms, terminated with pinacoids and partial pyramids {11bar21}
Colour: yellow, peach, pale green, pink overgrowths on pale green cores, aqua, colorless
Fluorescence: blue-white
Description: Crystals to 2 feet (60 cm) across have been found. Most typical are colorless to pale green or pink overgrowths on pale green cored ("reverse watermelon") crystals, usually less than 15 cm long. Commonly frozen in quartz and associated with fluorapatite, cleavelandite, elbaite. Pocket crystals rare.
ⓘ Beryl var. Aquamarine
Localities: Reported from at least 15 localities in this region.
Habit: elongated hexagonal prisms with pinacoids
Colour: blue
Description: Typically rough masses or subhedral to euhedral hexagonal crystals in matrix. Gem material was common.
ⓘ Beryl var. Goshenite
Formula: Be3Al2(Si6O18)
Habit: elongated hexagonal prisms, terminated with pinacoids and partial pyramids {11bar21}
Colour: colorless
Fluorescence: blue-white
Description: Beryl crystals to 2 feet (60 cm) across have been found. Crystals usually less than 15 cm long. In large crystals, color grades from colorless to rose externally with pale green cores. Commonly frozen in quartz and associated with fluorapatite, cleavelandite, elbaite. Some gem material in smaller crystals from pockets.
ⓘ Beryl var. Heliodor
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 10 localities in this region.
Habit: elongated prisms with partial or complete pyramidal terminations
Colour: yellow
Description: "Beryl occurs in the pegmatite in yellow (“golden”), green, and blue euhedral crystals. In the border zone they range in size from 1/32 to 1/34 inch in diameter and from 1/2 inch to 2 1/2 inches long. Crystals as much as 8 inches in length and 1 inch in diameter occur in the core-margin zone." Cameron et al (1954): USGS Prof Paper 255; "many crystals of golden beryl, sharp in form and of the finest gem quality. Indeed, this is one of the principal heliodor sources in North America. The Little collection, at Harvard University, contains some exceptionally fine clear golden crystals; they were obtained from masses of quartz, many years ago. Similar crystals are in various museums and private collections. Of late, several magnificent specimens of a different type have been recovered. Those are deeply etched, frosty-looking, greenish-golden gem crystals, from cavities along a fault (?) which runs through the lower end of the quarry. The Gallant collection includes a superb crystal, with round¬ed diamond-shaped etch-pits on virtually every surface. It is over two inches long." Schooner (1961).
ⓘ Beryl var. Morganite
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 8 localities in this region.
Habit: elongated hexagonal prisms, terminated with pinacoids and partial pyramids {11bar21}
Colour: pink, commonly with green cores
Description: Beryl crystals to 2 feet (60 cm) across have been found. Crystals usually less than 15 cm long. Color zoning in large crystals typically consists of colorless to rose externally, with pale green cores. Commonly frozen in quartz and associated with fluorapatite, cleavelandite, elbaite. Some pocket gem material.
ⓘ Beyerite ?
Formula: Ca(BiO)2(CO3)2
Description: Reference includes a list of minerals reportedly found by Dick Schooner in a pegmatite in East Hampton, but with no supporting details.
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Localities: Reported from at least 13 localities in this region.
ⓘ Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Habit: encrustation
Colour: black
Description: "This is one of the manganese oxides identified as a component of the soft black alteration crusts on tephroite, etc."
ⓘ Bismite
Formula: Bi2O3
Habit: encrstation/pseudomorph after bismuthinite
Colour: green
Description: Alteration product associated with a roughly 1 cm crystalline mass of bismuthinite in albite/schorl matrix with associated bismutite (yellow).
ⓘ Bismuthinite
Formula: Bi2S3
Localities: Reported from at least 16 localities in this region.
Habit: prismatic, platy masses
Colour: metallic gray
Description: Huff et al (1996): Bismuthinite “occurs intimately associated with minor pyrite in small veins in the pegmatite and in the quartz vein – thus providing the necessary elements for alteration into bright green bismutoferrite. This is the first confirmation of bismutoferrite in Connecticut.” As platy masses to striated crystals typically with green and yellow secondaries, in rust-stained pegmatite due to oxidation of associated pyrite.
ⓘ Bismutite
Formula: (BiO)2CO3
Localities: Reported from at least 13 localities in this region.
Habit: coatings
Colour: straw yellow
Description: yellow coatings on bismuthinite associated with bismutoferrite.
ⓘ Bismutoferrite
Formula: Fe3+2Bi(SiO4)2(OH)
Habit: coatings
Colour: bright green
Description: Associated with bismuthiniite and pyrite, which weathered to form this mineral and associated rusty stains and goethite in proximal matrix.
ⓘ Bismutotantalite
Formula: BiTaO4
Habit: anhedral
Colour: gray exterior, brown interior
Description: Very small grains to a couple of mm in matrix of albite, muscovite, quartz, elbaite. Analyzed in 2017 by Peter Cristofono and Tom Mortimer.
ⓘ Bityite
Formula: CaLiAl2(AlBeSi2O10)(OH)2
Habit: hexagonal
Colour: white
Description: Schooner (circa 1985) says: "When the Strickland quarry was last active, the author found a boulder of cleavelandite with a small vug of aggregated lustrous white hexagonal-looking crystals with calcite and a trace of lepidolite. It was many years before the mineral was recognized as being a mica! Its unusual X-ray pattern aroused some curiosity, and it was forwarded to Pete J. Dunn at the Smithsonian. He identified it as bityite, and made an analysis by electron microprobe."
ⓘ Brazilianite
Formula: NaAl3(PO4)2(OH)4
Colour: pink
Description: Schooner (circa 1985) says: "A few masses of Strickland quarry natromontebrasite, from the pollucite zone in the middle eastern wall, halfway down, are composed of intergrown metasomatic or hydrothermal alterations. Pink brazilianite, containing a trace of Mn (analysis by the USGS), is associated with augelite, lacroixite, and hydroxylapatite. This mineral was collected by Charles Thomas, and studied by Mary E. Mrose. Ronald E. Januzzi had earlier collected material, on the old dumps, in which the brazilianite occurs as confused white aggregates, with hydroxylapatite and possibly morinite." Natromontebrasite was discredited in 2007, being a mixture of montebrasite, lacroixite, and wardite.
ⓘ Breithauptite ?
Formula: NiSb
Description: No details in reference, all others cite this one.
References:
Shepard (1864)
ⓘ Bustamite
Formula: CaMn2+(Si2O6)
Habit: cleavable masses
Colour: light pink
Description: When the author discovered a large lens of spessartine at the Jail Hill quarry, in the 1950s, a few good specimens of pink "rhodonite" were collected. Two different shades were associated differently, one with spessartine and calcite (or dolomite), the other with tephroite and pyrophanite. X-ray and spectrographic tests have shown the lighter pink mineral to be bustamite, and the darker one pyroxmangite. In some cases, bustamite is intimately intergrown with johannsenite (probably an exsolution product).
ⓘ 'Calciomicrolite'
Habit: octahedron modified by dodecahedron, trapezohedron and hexahedron.
Colour: dark yellow green, brown, black
Description: Typically as micro-crystals but can reach 8mm, most easily found in the aplitic zone, but in the intermediate zone and core margin also. At least 4 crystals (tiny subhedral grains, 2 octahedral microcrystals and a single 21mm fragment) have been analyzed via SEM-EDS and in all cases the best match is calciomicrolite, with very little Na or Nb. Zones within the 21mm fragment were also analyzed and showed a Ca-Ta oxide with minor Nb (and no Na or Ti)...this could also be microlite, or perhaps calciotantite, which can occur as an inclusion in microlite.
ⓘ Calcite
Formula: CaCO3
Localities: Reported from at least 14 localities in this region.
Habit: scalenohedral, rhombohedral
Colour: white to clear
Fluorescence: magenta under all wavelengths but best under MW
Description: highly modified scalenohedrons (Brunet 1980)
ⓘ Caryopilite
Formula: Mn2+3Si2O5(OH)4
Description: This was identified (at the University of Michigan) as a very minor component of "ore" from the manganese pod at the Jail Hill quarry in Haddam.
ⓘ Cassiterite
Formula: SnO2
Colour: dark brownish black
Description: good crystals to 1 cm, can be highly modified, lustrous, microcrystals in cleavelandite
ⓘ Cerite-(CeCa) ?
Formula: (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Description: Reference includes a list of minerals reportedly found by Dick Schooner in a pegmatite in East Hampton, but with no supporting details.
ⓘ Cerussite
Formula: PbCO3
ⓘ 'Chabazite'
Localities: Reported from at least 8 localities in this region.
ⓘ 'Chabazite var. Phacolite'
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 22 localities in this region.
ⓘ 'Chlorite Group'
Localities: Reported from at least 12 localities in this region.
Description: Exact town uncertain as reference discusses "Saybrook", which covered what are now several towns. Chlorite is common in all the metamorphic rocks of the area. Robinson notes that it is "in small crystals".
ⓘ 'Chlorophyllite'
Habit: coarse, micaceous pseudomorphs after cordierite
Colour: green
Description: Term used loosely to describe the micaceous mineral of the cordierite pseudomorphs.
ⓘ Chrysoberyl
Formula: BeAl2O4
Habit: Typically flat, striated, cyclic twins, sometimes fully 6-sided.
Colour: yellow-green, pale green
Description: First locality where it was found in-situ. Intensely studied in the 19th century - crystal drawings are in Dana's System of Mineralogy and Goldschmidt's Atlas der Krystallformen. Shepard (1837) writes: "occurs in large distinct crystals, simple and compound (see fig. 136 of my Mineralogy) as well as massive". Crystals reached up to about 7.5 cm across, typically translucent but not gemmy.
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Chrysotile
Formula: Mg3(Si2O5)(OH)4
Description: Thoroughly unreasonable guess.
ⓘ Claudetite ?
Formula: As2O3
Description: According to an unconfirmed report by Schooner (circa 1980s), associated with arsenopyrite were "a few soft, transparent, gypsum-like plates" of claudetite.
ⓘ Clinozoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Description: In the host metamorphic rocks.
ⓘ Cobaltite ?
Formula: CoAsS
Description: Reported by Parker Cleaveland in 1822. No one else appears to have found the mineral there.
References:
Schooner (1958)
ⓘ Columbite-(Fe)
Formula: Fe2+Nb2O6
Localities: Reported from at least 23 localities in this region.
Habit: tabular to elongated prisms
Colour: black with iridescence
Description: Found in all the pegmatites usually to a couple of cm, the crystals typically subhedral when in matrix, euhedral crystals from pockets very rare but can reach 3 cm.
ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'
Localities: Reported from at least 19 localities in this region.
ⓘ Columbite-(Mn)
Formula: Mn2+Nb2O6
✪ 'Columbite-(Mn)-Tantalite-(Mn) Series'
Habit: rectangular prisms
Colour: dark reddish to reddish brown
Description: Columbite-tantalite crystals with reddish color and some translucency have been historically called tantalite-(Mn) without supporting analyses (even SG) but visually could equally be columbite-(Mn). Strong illumination is typically needed to see the color and translucency. Most are small (<1 cm) and embedded in matrix.
ⓘ 'Columbite-Tantalite'
ⓘ Cookeite
Formula: (LiAl4◻)[AlSi3O10](OH)8
Localities: Reported from at least 8 localities in this region.
Habit: micro-globular aggregates, masses, pseudomorphs after spodumene
Colour: pale yellow
Description: Typically as tiny spheres of crystal aggregates with K-rich albite, micas, elbaite, quartz, calcite, pyrite, fluorite, and bertrandite in cleavelandite of the mineralized intermediate plagioclase-quartz zone. Rare pseudomorphs of spodumene. Schooner (1955) says: "solid masses of bright yellow fine-grained material. Some pieces were seen to be as much as 4 or 5 inches thick, the mineral having occurred as a lining in a long cavity or series of cavities."
ⓘ 'Copiapite Group'
ⓘ Cordierite
Formula: Mg2Al4Si5O18
Localities: Reported from at least 11 localities in this region.
Habit: pseudohexagonal prism, subhedral blocky to massive
Colour: violet, blue, pale green
Description: Shows good cleavage and typically gemmy, though some of it is altered to dull gray-green "fahlunite". "The iolite has frequently been procured here in tabular plates, several inches across; and is remarkable for the facility with which it admits of cleavage into still thinner layers. This separation is undoubtedly promoted by the presence of exceedingly thin plates of what seems to be mica. The crystals are but seldom possessed of well defined lateral planes, in consequence of the implantation upon them of mica, albite, tourmaline, and more rarely of tabular spar. When perfect, however, they are either regular hexagonal prisms, or else this form, modified by the replacement of its lateral edges. Their color is a rich dark blue, with an occasional inclination to green; the depth of the color, as is usual in this species, is enhanced by the inspection of the plates in a direction perpendicularly to their cleavage." Shepard (1841) "Many beautiful specimens of a clear blue color have been found and cut into gems, showing dichroism by transmitted light. Specimens of this mineral seen in the different collections and museums of this country, you will invariably see labeled from Haddam. The alterations of this mineral are met with here in large quantities." (Davis, 1901).
ⓘ Covellite
Formula: CuS
ⓘ Crandallite ?
Formula: CaAl3(PO4)(PO3OH)(OH)6
Description: Schooner (1955) reports it "as microscopic crystals associated with bertrandite" found by Gunnar Bjareby. However, he does not mention it in any of his subsequent writings on the area.
ⓘ Cronstedtite
Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Habit: radial groups of flattened crystals
Colour: greenish-brown to almost black
Description: A drab greenish-brown to almost black mineral, abundantly associated with grunerite, siderite, and marcasite, was identified as chamosite. Careful restudy of X-ray data indicates cronstedtite as a better fit.
ⓘ Cummingtonite
Formula: ◻Mg2Mg5(Si8O22)(OH)2
ⓘ Cuprobismutite
Formula: Cu8AgBi13S24
Habit: prismatic
Colour: gray-bluish-black metallic
Description: Vajdak (1997): Cuprobismutite from Case Quarry, Portland, Middlesex County, Connecticut was found on several specimens self-collected by Russell C. Huff (Woodbury, CT) in 1995. The mineral occurs as prismatic crystals and blades a few mm long which is quite large for this rare mineral and is gray-bluish-black metallic. A very rare occurrence in pegmatite and a new mineral for Connecticut. It is associated with bismutoferrite which we have analyzed as a new mineral from there in 1995 and with yellow-green bismutite.
ⓘ Datolite
Formula: CaB(SiO4)(OH)
ⓘ Diadochite
Formula: Fe3+2(PO4)(SO4)(OH) · 6H2O
Habit: coatings and micro globules
Colour: orange
Description: Orange coatings on triphylite, messelite, and other related phosphates
ⓘ Dickinsonite-(KMnNa)
Formula: (KNa)(Mn2+◻)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2
Habit: flakes, coating on altered lithiophilite
Colour: olive green
Description: Schooner (1955): "Little scales of the rare phosphate are seen on a few specimens."
ⓘ Dickite
Formula: Al2(Si2O5)(OH)4
Habit: massive
Colour: bluish-gray
Description: nepheline-sodalite rock has been extensively replaced by fine-grained bluish-gray dickite and white natrolite.
ⓘ Diopside
Formula: CaMgSi2O6
Localities: Reported from at least 13 localities in this region.
Habit: elongated narrow prismatic
Colour: gray-green
Description: Fan-shaped aggregates of radiating crystals about 1-1.5 cm wide and 15 cm long frozen in quartz. Found in a glacial boulder near the quarry.
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 10 localities in this region.
Habit: Elongated trigonal prisms, antilogous pole terminated with rhombohedral pyramids {1bar11}, analgous pole dominated by a pedion.
Colour: prisms mostly green, blue-green, rarely pink. Terms. green, yellow, pink, blue, combinations
Description: Hundreds of crystals in some pockets, often "piercing" smoky quartz. Flawless crystals are rare; usually fractured. Large pocket crystals vary but are usually striated to silky, slender and elongated, from small needles up to 30 cm, but typically a few cm long. Color zoning is usually longitudinal, short and terminal in shades of green, pink, golden yellow and blue with up to 5 colors. Antilogous poles typically pale green, yellow, pink; analogous poles usually colorless, pale green, aqua. w/thin indigo cap, or sometimes with a narrow pale colored zone immediately beneath and parallel to the pedion. Tiny crystals may be any color throughout. Concentric “watermelon” zoning is not common. Some fragments of green prisms are overgrown by later pink zones. Also found frozen in matrix with beryl, fluorapatite, fluorite, muscovite, smoky quartz, lepidolite, microlite, columbite.
ⓘ Enstatite
Formula: Mg2Si2O6
Habit: elongated prismatic
Colour: dark brown-black
Description: dark but translucent, elongated crystals frozen in actinolite matrix, micro-crystals in tiny voids
ⓘ Eosphorite
Formula: Mn2+Al(PO4)(OH)2 · H2O
Description: Rarely occurs with rhodochrosite and other secondary alterations of lithiophilite nodules.
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Localities: Reported from at least 18 localities in this region.
Habit: elongated prisms
Colour: pale green
Description: Reportedly one of the better localities in Conn., Davis (1901) says: "some crystals doubly-terminated and six inches long, with brilliant faces and rich color. The color at this locality is particularly fine and many of the smaller crystals are transparent"
ⓘ Epsomite
Formula: MgSO4 · 7H2O
Habit: efflorescence
Description: Schooner (1958): "occurs very sparingly with pickeringite, in efflorescences on protected schist ledges in the cut above the Strickland Quarry. It is distinguished from pickeringite by its different taste… the same as that of artificial Epsom salt."
ⓘ Erythrite
Formula: Co3(AsO4)2 · 8H2O
Habit: earthy incrustation or delicate needles
Colour: red
Description: Formed from the weathering of Co-rich loellingite. "Eugene Franckfort reported that the face of one lode, opened more than a century ago, was covered with, abundant erythrite crystals… as fine as any which he had seen in his native Europe." (Schooner 1958). "The Francfort mineral collection [at Wesleyan University] contains some excellent samples of erythrite from Bucks Shaft" (Gray 2005). It was common during the mining, but very scarce now. A small flake was tested in concentrated HCl and it turned the solution blue, indicating erythrite.
ⓘ Euclase ?
Formula: BeAl(SiO4)(OH)
Colour: colorless
Description: Etched, elongated microcrystals with rhombic cross-section and wedge-shaped terminations. With secondary quartz and cookeite coating a pocket quartz.
ⓘ Eucryptite
Formula: LiAlSiO4
Description: Speculation by Schooner.
ⓘ Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Description: Reference by Januzzi (1976) to this mineral being found by Schooner in "Portland" correlates only with a report by Schooner (circa 1985) from the Hale Quarry in Portland. Schooner makes no mention if it from Strickland in his various comprehensive publications, especially his last, Schooner (circa 1985).
ⓘ 'Fahlunite'
Formula: (Mg,Fe)Al2Si3O10 · 2H2O
Habit: pseudomorphs after cordierite
Colour: dull olive green
Description: "The pinite [later fahlunite] variety, though generally occurring in indeterminate shaped pieces, yet nevertheless is occasionally seen in forms of the same shape and regularity as the iolite, from which, however, it differs essentially in color and hardness. The peculiar tint affected by the pinite is a pale, bluish, chloride green. Its lustre is pearly, and not particularly shining, except in a few specimens, where the color approaches silver-white. Hardness 2.5. Laminae neither flexible nor elastic. "in rhombic prisms in great abundance at the Iolite locality, and desirable specimens are easily obtainable. Many of these specimens upon being broken show clear blue Iolite in the interior, from which mineral it, is derived as alteration." (Davis, 1901).
ⓘ Fairfieldite
Formula: Ca2Mn2+(PO4)2 · 2H2O
Habit: radiating
Colour: white
Description: radiating fans of micro crystals in altered lithiophilite, with hureaulite, hydroxylapatite.
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Feldspar Group'
ⓘ 'Feldspar Group var. Perthite'
ⓘ Ferri-ghoseite
Formula: ◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
Habit: lamellar or bladed
Colour: tan or green
Description: Reported by Dick Schooner as "Tirodite", reference below provides no details. An XRD analysis of a sample labeled "tirodite" from Dick Schooner's collection could not differentiate it from actinolite. However, Schooner (circa 1990) reports: "Tan or green tirodite, lamellar and bladed, was rather common at the Jail Hill quarry, usually with only spessartine or barite. Masses two inches across have been preserved. A few little silky-fibrous tufts proved to be tirodite, also. This material was studied at the University of Michigan." A dark green amphibole-rich Schooner specimen labeled as "tirodite" (photo 983892) was analysed via SEM-EDS by Micromounters New England in 2019 and was found to be ferro-actinolite (no Mn).
ⓘ Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
Colour: yellowish
Description: alteration of molybdenite (Schooner 1958)
ⓘ Ferro-actinolite
Formula: ◻Ca2Fe2+5(Si8O22)(OH)2
Habit: anhedral
Colour: very dark green
Description: As sub-cm grains in amphibolite rock with frosty, fine-grained scapolite.
ⓘ Ferroberaunite
Formula: Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
References:
Anonymous collection.Identified by Kevin Czaja: Raman Spectroscopy
ⓘ Ferro-hornblende
Formula: ◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
Habit: Slightly elongated prismatic
Colour: black
Description: Porphyroblasts in amphibole gneiss adjacent to the pegmatite, subhedral crystals to about 1 cm.
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
Localities: Reported from at least 42 localities in this region.
Habit: short hexagonal prisms or tabular, terminated by pinacoids with modified edges
Colour: pale gray-green or rose pink to purple
Fluorescence: bright yellow
Description: Gray-green opaque crystals up to 2 cm common in quartz, albite, beryl, elbaite, lepidolite matrix. Translucent to clear crystals in pockets, either as stout hexagonal prisms or with a central fluorescent prism surrounded by tapered, non-fluorescent overgrowths up to a few cm across. Gray-green crystals show more forms than the rose pink to purple crystals.
ⓘ Fluorapatite var. Manganese-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Habit: anhedral to stubby subhedral hexagons
Colour: grayish green to blue-green, white, pale blue
Fluorescence: yellow
Description: An old term that should be abandoned, see description under fluorapatite.
ⓘ Fluorapophyllite-(K)
Formula: KCa4(Si8O20)(F,OH) · 8H2O
Habit: elongated prisms modified by pyramids and pinacoids or tabular dominated by pinacoids
Colour: colorless, pale pink to white or pale yellow (tabular aggregates)
Description: In fractures typically with calcite and datolite, crystals usually small <1 cm, as individual prismatic or botryoidal aggregates of tabular crystals that resemble typical prehnite aggregates except for their pale yellow color.
ⓘ Fluorite
Formula: CaF2
Localities: Reported from at least 14 localities in this region.
Habit: octahedral
Colour: light ot medium green, purple
Fluorescence: blue under all wavelengths
Description: "Green octahedrons w/quartz and calcite crystals. Octahedrons up to ½” but larger broken crystals found. Also purple massive and micro crystals." Brunet (1980). Pawloski (2006) - crystals to 1.6 cm.
ⓘ Fluorite var. Chlorophane
Formula: CaF2
Habit: anhedral to modified octahedral
Colour: micro crystals colorless to pale pink with purple zones at the tips, larger crystals and masses are red to reddish black
Fluorescence: blue-green in SW, purple in LW, green phosphorescence
Description: Crystals mostly micros in pockets in the aplitic zone, larger crystals to a few cm rare, but they typically crumble into fragments when found. Typically as irregular masses to 10 cm. SW fluorescence is eventually lost if left exposed to any light, so immediately place and keep any finds in an opaque container to preserve this property.
ⓘ 'Fluor-uvite-Uvite Series' ?
Colour: black, dark brown
Description:
ⓘ Foitite
Formula: ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: Grading into elbaite, associated with wodginite, cassiterite, quartz and gobbinsite.
ⓘ Fourmarierite
Formula: Pb(UO2)4O3(OH)4 · 4H2O
Habit: pseudomorphs after uraninite
Colour: reddish
Description: "In a study at Harvard University, in 1964, both fourmarierite and vandendriesscheite were identified, by X-ray diffraction, as components of hard "gummite" pseudomorphs after uraninite from the Rock Landing quarry. Fourmarierite is reddish; vandendriesscheite, yellow. The material came from the Charles Thomas collection." Schooner (circa 1980s).
ⓘ Gahnite
Formula: ZnAl2O4
Localities: Reported from at least 7 localities in this region.
Description: Mentioned by Foye (1922) as occurring there, but specimens are lacking.
ⓘ Galaxite ?
Formula: Mn2+Al2O4
Colour: dark green
Description: A dusting of a dark green mineral is seen in alleghanyite-kutnohorite specimens from the Jail Hill quarry. X-ray diffraction of a mixed sample shows faint peaks that correspond rather well to galaxite.
ⓘ Galena
Formula: PbS
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 14 localities in this region.
Colour: ruby red
Description: The crystals an seldom perfect, usually only half crystallized, but those faces that are shown are very brilliant and of a rich ruby red color. (Davis, 1901)
ⓘ Gedrite
Formula: ◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
Habit: elongated prismatic
Colour: black to very dark greenish black
Description: In localized, very coarse-grained portions of the Middletown Formation in the Turkey Hill Reservoir area, associated with almandine, magnetite and phlogopite in albite-quartz matrix. Crystals up to several cm. Confirmed by both TEM-EDS and Raman spectroscopy - near the composition boundaries between gedrite, anthophyllite, ferro-anthophyllite and ferro-gedrite fields, under the current amphibole classification, but just within the gedrite range.
ⓘ Gehlenite
Formula: Ca2Al[AlSiO7]
Habit: tetragonal prisms
Colour: light brown
Description: Tiny crystals in lens-like bodies of calc-silicate rock in the host Collins Hill Formation. Optical and X-ray study by Waldemar T. Schaller at the USGS indicate gehlenite, associated with diopside, grossular, wollastonite, and spurrite.
ⓘ Gersdorffite
Formula: NiAsS
Habit: grains
Description: "An analysis by Fairchild, published in 1931, and quoted in the Seventh Edition of “Dana’s System of Mineralogy”, gave: iron 3.9, cobalt 0.7, nickel 31.6, antimony 9.1, arsenic 34.9, sulfur 17.1, and bismuth 0.4%" (Schooner 1958); with the ore minerals at Shepard's Lode (Gray 2005).
ⓘ 'Gmelinite Subgroup' ?
Description: This mineral is unknown from Connecticut trap rock. Likely confusion with chabazite variety phacolite.
ⓘ Gobbinsite
Formula: Na5(Si11Al5)O32 · 11H2O
Description: Asociated with foitite grading into elbaite, wodginite, cassiterite, and quartz.
ⓘ Goethite
Formula: Fe3+O(OH)
Localities: Reported from at least 15 localities in this region.
ⓘ Gonnardite
Formula: (Na,Ca)2(Si,Al)5O10 · 3H2O
ⓘ Goslarite ?
Formula: ZnSO4 · 7H2O
Habit: efflorescence
Colour: white
Description: "A thin coating of white goslarite, with a characteristic sharp taste, was found on the protected bottom of a pegmatite boulder, containing sphalerite and pyrite, on a Strickland quarry dump. Such material is, of course, ephemeral, because of its hydrosoluble nature." (Schooner, circa 1985).
ⓘ Graftonite ?
Formula: Fe2+Fe2+2(PO4)2
Description: Reported by Schooner (circa 1980s) as occurring in pieces from the Charles Thomas collection, along with triphylite, scorzalite, siderite, fairfieldite, augelite. Possible they could have come from the Palermo mine.
ⓘ Graphite
Formula: C
Localities: Reported from at least 6 localities in this region.
ⓘ Grayite
Formula: (Th,Pb,Ca)(PO4) · H2O
ⓘ Greenockite ?
Formula: CdS
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
Localities: Reported from at least 12 localities in this region.
Habit: dodecahedral
Colour: reddish-brown, orange-brown
Description: Good crystals to several cm.
ⓘ Groutite
Formula: Mn3+O(OH)
Habit: massive crust
Colour: black
Description: Thick black crust on altered lithiophilite with hureaulite and hydroxylapatite.
ⓘ Grunerite
Formula: ◻Fe2+2Fe2+5(Si8O22)(OH)2
Description: siderite layers up to 1/2 inch were common in a vein of marcasite, cronstedtite, grunerite, and quartz (Schooner, circa 1985).
ⓘ 'Gummite'
Colour: orange, yellow, red
Description: According to Schooner (circa 1980s) analyzed by Clifford Frondel at Harvard and found to be mix of fourmarierite and vandendriesschite.
ⓘ Gypsum
Formula: CaSO4 · 2H2O
Localities: Reported from at least 7 localities in this region.
ⓘ Gypsum var. Selenite
Formula: CaSO4 · 2H2O
ⓘ Halloysite
Formula: Al2Si2O5(OH)4 · n(H2O)
Habit: earthy to waxy masses
Colour: tan
Description: Alteration of pollucite, so occurs as thin crusts and veins with elbaite, pollucite, cleavelandite.
ⓘ Hastingsite
Formula: NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
Habit: subhedral prismatic
Colour: black
ⓘ Helvine
Formula: Be3Mn2+4(SiO4)3S
Colour: yellow
Description: Schooner (circa 1990) says "Two lean specimens of helvite, yellow and with an almost sulfur-like aspect, have been collected at the Swanson mine, both by Anthony J. Albini. The helvite, identified at the Smithsoninan, is closely associated with nearly white manganapatite and a little altered triplite. It appears to be very rare."
ⓘ Hematite
Formula: Fe2O3
Localities: Reported from at least 6 localities in this region.
ⓘ Hemimorphite ?
Formula: Zn4Si2O7(OH)2 · H2O
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Herderite
Formula: CaBe(PO4)F
Description: undoubtedly hydroxylherderite as there is still but one or two chemically verified herderite specimen in the world and even the so-called type locality for true herderite does not have the species by modern chemical analyses. "Chemical analysis of herderite, collected by the author, at the State Forest Mine in East Hampton, Connecticut, indicate that it is the hydroxyl variety" (Januzzi 1994).
ⓘ Heterosite
Formula: Fe3+(PO4)
Colour: purple
Description: secondary after triphylite (Foye 1922)
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Hexahydrite ?
Formula: Mg(H2O)6(SO4)
Description: Discovered by Richard Schooner as an "efflorescence on schist" at an undisclosed Portland location, reported by Januzzi, but details lacking.
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
Localities: Reported from at least 7 localities in this region.
ⓘ Hureaulite
Formula: Mn2+5(PO3OH)2(PO4)2 · 4H2O
Habit: microcrystals
Colour: reddish brown
Description: Schooner (1958) – "A rather recent x-ray study of some altered triplite from the Swanson Mine in East Hampton, made for the author by Mary E. Mrose of the U. S. Geological Survey, showed the presence of hureaulite as tiny reddish-brown crystals."
ⓘ Hydrokenoelsmoreite ?
Formula: ◻2W2O6(H2O)
Description: Reference includes a list of minerals reportedly found by Dick Schooner in a quartz vein in East Hampton, but with no supporting details. The mineral is listed as "ferritungstite".
ⓘ Hydrokenoelsmoreite var. Ferritungstite ?
Formula: ◻2(W,Fe3+)2(O,OH)6(H2O)
ⓘ Hydroxylapatite
Formula: Ca5(PO4)3(OH)
Habit: pearly opalescent crust or stubby, rounded hexagons
Colour: white
Description: As white overgrowth on purple fluorapatite as a late crystallization hosted by K-rich albite and as a massive to micro chalky-white crystals and opalescent rind around altered lithiophilite with hureaulite and groutite. Schooner (circa 1985) calls the latter opaline or chalcedonic variety francolite (under the heading for carbonate fluorapatite). Specimens of metasomatically altered montebrasite, collected at the Strickland quarry around 1950 by Charles Thomas, consist of gray augelite crystals intergrown with pink brazilianite, pink hydroxylapatite, and yellow lacroixite.
ⓘ Hydroxylherderite
Formula: CaBe(PO4)(OH)
Habit: flat prisms with dome terminations
Colour: pale yellow
Description: Specimens analyzed by Leavens, et al. (1978) from New England were analyzed and found to be true hydroxylherderite. As the study was made after the reference cited and as there are only one or two analyzed true herderites in the world, the entry was changed to conform to modern nomenclature. Leavens, et al., 1978, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, American Mineralogist, v 63, p. 913-917. "Chemical analysis of herderite, collected by the author, at the State Forest Mine in East Hampton, Connecticut, indicate that it is the hydroxyl variety" (Januzzi 1994). Described (as herderite) by Schooner (1958) as "twenty five 1/32 inch pale yellow tabular crystals in a vug of albite and altered siderite, near a contact with semi-columnar beryl"
ⓘ Hydrozincite
Formula: Zn5(CO3)2(OH)6
ⓘ Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 7 localities in this region.
ⓘ Ilmenite var. Iron(III)-bearing Ilmenite
Formula: (Fe2+,Fe3+)TiO3
✪ Ishikawaite
Formula: U4+Fe2+Nb2O8
Habit: tabular
Colour: black with brown coating
Description: metamict crystals with obsidian-like conchoidal fracture
ⓘ 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series'
Habit: tabular
Colour: black
Description: Schooner (circa 1990) - "Several beautiful ixiolite crystals, in compact grayish lepidolite, were collected at the Swanson mine, by Anthony J. Albini. These range up to half an inch; they are black, brilliant, flattened, and striated, much resembling wolframite. The identification was by X-ray methods."
ⓘ 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite'
Formula: (Nb,W,Ta,Fe,Mn)2O4
Habit: acicular
Colour: black
Description: Elongated, thin crystals in albite/quartz/annite matrix, with unknown translucent, orange-red coating.
ⓘ Jacobsite
Formula: Mn2+Fe3+2O4
Description: "Specimens of tephroite from the Jail Hill quarry contain magnetic grains, shown (by X-ray and microprobe study at the University of Michigan) to be jacobsite. The material ranges from ferroan jacobsite to manganoan magnetite, within individual grains. A few specimens show it rather abundantly." Specimens are in the Harvard Mineralogical Museum.
ⓘ Jarosite ?
Formula: KFe3+3(SO4)2(OH)6
Habit: Coatings
Description: Reported by Dick Schooner as "Coatings on schist" in Januzzi (1976) p. 234.
ⓘ Johannite
Formula: Cu(UO2)2(SO4)2(OH)2 · 8H2O
Description: "was attributed to some locality in Middletown...by C. U. Shephard, in 1850. In a recent communication to the author, Clifford Frondel of Harvard University said, 'The old reported occurrences of uranium sulfates are not valid'." Schooner (1958)
ⓘ Johannsenite ?
Formula: CaMn2+Si2O6
Colour: tan or gray
Description: Fibrous tan or gray johannsenite is intergrown with pink bustamite in a few specimens from the Jail Hill quarry. The X-ray pattern indicates a clinopyroxene, and spectrographic analysis shows calcium and manganese as the principal cations of both minerals. The association is entirely characteristic.
ⓘ Kaersutite
Formula: NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
Localities: Reported from at least 7 localities in this region.
Description: Included only in mineral lists with no details but plausible for the locality, presumably clay in pockets.
ⓘ 'K Feldspar'
Habit: wedge-shaped
Colour: white
Description: In hexagonal voids from dissolved beryl, with clays and bertrandite.
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
Colour: creamy
Description: Microcrystals in voids in amphibolite with tremolite.
ⓘ Kutnohorite
Formula: CaMn2+(CO3)2
Habit: massive
Colour: pink
Description: "Light pink kutnohorite (verified at the University of Michigan) is the matrix for abundant reddish grains of alleghanyite (or an alleghanyite-like mineral) in the material collected, around 1960, at the Jail Hill quarry. Tephroite, jacobsite, and pyrophanite are also associated."
ⓘ Kyanite
Formula: Al2(SiO4)O
Localities: Reported from at least 12 localities in this region.
Colour: blue
Description: Some magnificent specimens of a rich blue color have been plowed up on a Haddam Neck farm, but I think the original vein has never been discovered. One of the finest of these specimens is in the collection of Mr. F. P. Per¬kins, Port Chester, N. Y. (Davis, 1901).
ⓘ Lacroixite
Formula: NaAl(PO4)F
Habit: granular
Colour: pale yellow
Description: From Schooner (circa 1985): "Mary E. Mrose [USGS] studied some exceptional material collected at the Strickland quarry by Charles Thomas, when the last sporadic work was done in the non-flooded pit. Lacroixite formed rather granular pale yellow areas in a mixture of augelite, brazilianite, and hydroxylapatite (?), replacing natromontebrasite. Her paper redefined the species, which had been in question." Natromontebrasite was discredited in 2007, being a mixture of montebrasite, lacroixite, and wardite.
ⓘ 'Lanthanite' ?
Formula: REE3+2(CO3)3 · 8H2O
Colour: gray
Description: A possible weathering product of the basnaesite.
ⓘ Larnite
Formula: Ca2SiO4
Colour: grayish
Description: Schooner (circa 1985): "One of the calc-silicate pods at the Strickland quarry contained the usual fine-grained diopside, grossularite, and wollastonite, with the addition of a 1/2 inch zone of grayish cleavable larnite, giving a distinct X-ray pattern." Studied by Waldemar T. Schaller of USGS.
ⓘ Laueite
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Habit: microscopic elongated prisms
Colour: red-orange
Description: "Tiny orange crystals are associated with strunzite fibers in vugs of altered messelite, with siderite and mitridatite" (Schooner 1961)
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
Colour: flesh to pink
Description: "flesh-colored to pink laumontite were found. These crystals, occurring in vugs and on a few surfaces, are splintery and of matchstick size. Some vein material was also present. The largest specimen, 10 by 6 inches in size, contains excellent vug material associated with prehnite as well as veins of laumontite." Brunet (1980)
ⓘ 'Lepidolite'
Localities: Reported from at least 10 localities in this region.
Habit: pseudo-hexagonal crystals, granular
Colour: purple
Description: As distinct crystals, up to 10 cm across; as overgrowths on a core of green muscovite and in turn overgrown by parallel schernikite fibers - all cleavable as one unit. As peach-blossom red crystals, often penetrated by elbaite. Fine-grained, granular masses in matrix with smoky quartz, cleavelandite, elbatite, beryl, fluorapatite.
ⓘ Liandratite
Formula: U(Nb,Ta)2O8
ⓘ 'Limonite'
Localities: Reported from at least 16 localities in this region.
ⓘ Linarite
Formula: PbCu(SO4)(OH)2
Colour: bright blue
Description: From Schooner (circa 1980s): "At the exposed galena-sphalerite-calcite veins near the lead mine tunnels, between River Road and the Connecticut River, seams and vugs contain traces of secondary minerals. One of them is linarite, as bright blue microcrystals."
ⓘ Litharge
Formula: PbO
Colour: tan
Description: From Schooner (circa 1980s): "Massicot was the most abundant of the lead oxides from the now-collapsed tunnel of the lead mine nearest the river. X-ray study, however, showed the presence of minor litharge. A sample of weathered galena, picked up on the cobalt mine dump below Great Hill, had a rather thick tan crust. It gave a very good X-ray pattern of litharge."
ⓘ Lithiophilite
Formula: LiMn2+PO4
Colour: deep orange-red to reddish brown to light brown
Description: with some spodumene and lepidolite; some very fine specimens of deep orange-red color in quartz
ⓘ Lithiophilite var. Sicklerite
Formula: Li1-x(Mn3+xMn2+1-x)PO4
Habit: crusts
Colour: brown
Description: Thin brown crust on altered lithiophilite with hureaulite and hydroxylapatite.
ⓘ 'Lithiophilite-Triphylite Series'
Description: Confusion with triplite and elbaite.
ⓘ Löllingite
Formula: FeAs2
Habit: tabular microcrystals
Colour: iridescent
Description: Some beautifully developed crystals have come from the Strickland Quarry, including small brilliant ones in granular lepidolite (Schooner, 1961). A few years ago, some tiny iridescent tabular crystals were noted in specimens of coarsely granular golden-brown zinnwaldite from the Strickland quarry. X-ray study indicates they are loellingite (Schooner. circa 1985).
ⓘ Ludlamite
Formula: Fe2+3(PO4)2 · 4H2O
Habit: cleavable masses
Colour: pale green
Description: "Light green cleavages were associated with siderite and triphylite. It also formed thin borders along messelite areas in hydrothermally altered triphylite." (Schooner 1961)
References:
Schooner (1961)
ⓘ Maghemite
Formula: (Fe3+0.67◻0.33)Fe3+2O4
Habit: massive
Colour: brown
Description: Alteration of magnetite found on biotite gneiss in the rock quarry uphill from the pegmatite. Referenced and photographed by Weissmand and Nikischer of Excalibur Mineral Corp. Harold Moritz collection contains a similar specimen purchased from them.
ⓘ Magnesio-hornblende
Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Habit: acicular masses
Colour: dark green
Description: Crystalline masses matching the description of "actinolite" by Schooner with grossular and rutile, part of a calc-silicate assemblage in the Collins Hill Formation hosting the pegmatite. Identified by TEM-EDS in 2016.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 24 localities in this region.
Habit: Striated octahedrons to dodecahedrons
Colour: metallic gray to black
Description: Typically coated with a thin layer of muscovite that can be carefully removed.
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ 'Manganese Oxides'
ⓘ 'Manganese Oxides var. Manganese Dendrites'
Habit: dendritic coatings
Colour: black to dark brown
ⓘ Manganite
Formula: Mn3+O(OH)
Description: No data.
ⓘ Marcasite
Formula: FeS2
Description: met with occasionally in the gneiss quarries (Davis, 1901)
ⓘ Massicot
Formula: PbO
Colour: yellowish
Description: From Schooner (circa 1980s)" "Some rich specimens, showing soft yellowish massicot in cellular quartz, derived from the alteration of galena, were found in the last lead mine tunnel toward the river. X-ray study indicates a mixture of massicot and litharge, with massicot predominating."
ⓘ Masutomilite
Formula: K(LiAlMn2+)[AlSi3O10]F2
ⓘ Meionite
Formula: Ca4Al6Si6O24CO3
Habit: Massive
Colour: colorless to very pastel green
Fluorescence: pinkish-red under SW UV
Description: Massive material, species checked via SG = 2.73.
ⓘ Melanterite
Formula: Fe2+(H2O)6(SO4) · H2O
Localities: Reported from at least 9 localities in this region.
Description: Reference provides no details, probably a surficial alteration product of the ore minerals.
ⓘ Messelite
Formula: Ca2Fe2+(PO4)2 · 2H2O
Habit: massive curved, lamellar aggregates, acicular microcrystals
Colour: white to tan, sometimes a green coating of an unknown.
Description: "Many solid white or tan masses, with a curved lamellar structure, were collected; some were two inches across. The messelite was intergrown with siderite, or embedded in triphylite. Distinct crystals, with a pearly luster, were noted in vugs of the massive mineral." Schooner (1961). Associated with triphylite, siderite, strunzite, laueite, mitridatite, ludlamite, vivianite. A green mineral thought to be beraunite was tested by XRD (with some matrix) at the National Museum Prague (dr. Jiri Sejkora) and found to be "no beraunite but something similar to messelite". The green may be only a coating.
References:
Schooner (1961)
ⓘ Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6H2O
Localities: Reported from at least 19 localities in this region.
Habit: thin flakes
Colour: pale yellow-green
Fluorescence: green
Description: used to be collected in genuine museum pieces
ⓘ Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Localities: Reported from at least 9 localities in this region.
Habit: tabular
Colour: emerald green
Description: micaceous flakes are quite large, being about one-eighth inch across (Jones (1960)) magnificent specimens...was common, around l94l or 1942 (Schooner (1958) sometimes covers the specimens so thickly as to give them a solid green appearance (Little 1942)
ⓘ Microcline
Formula: K(AlSi3O8)
Localities: Reported from at least 80 localities in this region.
Colour: white to pale tan
Description: Good subhedral crystals where formed against the quartz cores of the pegmatites. Stugard (1958) established that microcline is the K-feldspar of tbe pegmatite district.
ⓘ Microcline var. Amazonite
Formula: K(AlSi3O8)
Habit: massive to subhedral prismatic
Colour: pale green
Description: Concentrated at the intermediate/quartz core zone boundary where inward oriented, subhedral prismatic crystals reach 30 cm. Color is generally pale and patchy within crytals, but some zones approach aqua.
✪ Microcline var. Hyalophane
Formula: (K,Ba)[Al(Si,Al)Si2O8]
Habit: prismatic
Colour: pale yellow-white
Description: "A few nicely formed yellowish hyalophane crystals (adularia type) were found in vugs of spessartine crystals at the Jail Hill quarry in Haddam, associated with a lens of manganese silicates and oxides. Spectrographic analysis indicates the hyalophane is manganoan." Schooner (circa 1985). Crystals reach about 1 cm.
ⓘ 'Microlite Group'
Formula: A2-mTa2X6-wZ1-n
Localities: Reported from at least 13 localities in this region.
Habit: octahedral
Colour: yellow-green to brownish black
Description: Usually tiny crystal <5 mm. A crystal from the White Rocks Quarry further up the same pegmatite dike was analyzed by EDS and found to be calciomicrolite.
ⓘ Mimetite ?
Formula: Pb5(AsO4)3Cl
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Minium ?
Formula: Pb3O4
Colour: orange-red
Description: From Schooner (circa 1980s): "Dull orange-red minium is one of the lead oxides found at the lowest of the tunnels between River Road and the Connecticut River, in Middletown. This material did not yield the good X-ray pattern of the other lead oxides, massicot, litharge, and plattnerite. It is assumed to be fine-grained or impure. Interestingly, no hematite peaks were seen."
ⓘ Mitridatite
Formula: Ca2Fe3+3(PO4)3O2 · 3H2O
Habit: coatings
Colour: green
Description: Associated with triphylite, diadochite, messelite, siderite, strunzite, hydroxylapatite, ludlamite, vivianite in altered tryphilite masses.
ⓘ Molybdenite
Formula: MoS2
Localities: Reported from at least 19 localities in this region.
Habit: hexagonal, tabular
Colour: metallic gray
Description: Excellent euhedral crystals to 5 cm
ⓘ Monazite-(Ce)
Formula: Ce(PO4)
Localities: Reported from at least 11 localities in this region.
Habit: roughly rectangular and flattened
Colour: red-brown
Description: Large, well formed monazite crystals (2 to 3 cm. in diameter) (Foye 1922) up to 2 inches with brown staining (Schooner 1958)
ⓘ 'Monazite Group'
Formula: REE(PO4)
Colour: yellow-brown
Description: "beautiful yellowish-brown monazite crystals, up to a couple of inches long and quite glassy, are sometimes found. [David] Seaman has established their identity by an x-ray test." Schooner (1961).
ⓘ Montebrasite
Formula: LiAl(PO4)(OH)
Habit: typically anhedral
Colour: white or pinkish, with brown rind
Description: called amblygonite, but shown by others to be montebrasite
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Colour: brownish
Description: encrustations on pegmatite (Zodac 1941)
ⓘ Moraesite
Formula: Be2(PO4)(OH) · 4H2O
Habit: Acicular, encrustations
Colour: white
Description: Merged sprays of acicular crystals forming a white crust on massive beryl, with hydroxylherderite.
ⓘ Morinite ?
Formula: NaCa2Al2(PO4)2(OH)F4 · 2H2O
Description: Unconfirmed. According to Schooner (circa 1985): "A few masses of Strickland quarry natromontebraesite, from the pollucite zone in the middle eastern wall, halfway down, are composed of intergrown metasomatic or hydrothermal alterations. Pink brazilianite, containing a trace of Mn (analysis by the USGS), is associated with augelite, lacroixite, and hydroxylapatite. This mineral was collected by Charles Thomas, and studied by Mary E. Mrose [USGS]. Ronald E. Januzzi had earlier collected material, on the old dumps, in which the brazilianite occurs as confused white aggregates, with hydroxylapatite and possibly morinite."
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 80 localities in this region.
Habit: pseudohexagonal tabular to elongated crystals
Colour: dark silver to bronze
Description: Sharp, dark, well-formed crystals.
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Habit: earthy
Colour: pastel pink
Description: clay-like masses in small voids in the aplitic zone of the pegmatite.
ⓘ Muscovite var. Schernikite (FRL)
Formula: KAl2(AlSi3O10)(OH)2
Habit: Rhombic fibers in parallel or twin-position
Colour: white, tan, pink
Description: A variety of pink fibrous muscovite so far unique to Gillette, as described by Scovil (1992): "Bowman (1902) goes into great detail in his analysis of muscovite and lepidolite from Gillette. The two form interesting overgrowths, with pale green muscovite at the center. This core is surrounded by a sharply defined zone of pink lepidolite. The lepidolite was subsequently overgrown by pink fibrous muscovite. The fibers are rhombic in cross section and are in parallel or twin-position so that the mass can be cleaved as if a single crystal...The fibrous muscovite also occurs as inclusions in quartz crystals. The muscovite starts at a pin point in the quartz crystals interior and becomes a divergent sub-parallel bundle of fibers as it reaches the surface where it is often the preferred site for a cookeite hemisphere."
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Gold
Formula: Au
Habit: micron to mm-sized grains
Description: "Native gold, generally as micron sized grains, is found, along with pyrite and chalcopyrite, in a network of thin fractures and veins cutting the arsenopyrite. Although much of the gold is very fine grained and is difficult to see, even with a strong hand lens, grains up to a mm are present" Gray (2005)
ⓘ Native Silver
Formula: Ag
Description: Apparently a non-specific reference to the Middletown Lead Mine.
ⓘ Native Sulphur
Formula: S8
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ 'Natromontebrasite'
Description: Schooner (circa 1985) reports: "A few years ago, John Gillespie did a spectrographic analysis on a sample submitted by the author, finding much Na and hardly any Li. It is quite possible that natromontebrasite was fairly common... A few masses of Strickland quarry natromontebrasite, from the pollucite zone in the middle eastern wall, halfway down, are composed of intergrown metasomatic or hydrothermal alterations. Pink brazilianite, containing a trace of Mn (analysis by the USGS), is associated with augelite, lacroixite, and hydroxylapatite. This mineral was collected by Charles Thomas, and studied by Mary E. Mrose [USGS]." This mineral was discredited in 2007 as a mixture of montebrasite, lacroixite and wardite.
ⓘ Natrophilite
Formula: NaMn2+PO4
Habit: elongated subhedral grains
Colour: light yellow
Description: Subhedral, glassy, elongated grains embedded in lithiophilite.
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
Habit: anhedral to subhedral grains
Colour: pale gray
Description: Major component of the rock.
ⓘ Nickeline
Formula: NiAs
Habit: grains
Colour: bronze
Description: Reported by Schairer (1931) "Found in mica schist", confirmed by Chomiak (1989). Associated with waxy, pale apple green annabergite.
ⓘ Nickelskutterudite
Formula: NiAs3
Habit: grains
Description: "Shepard [1837] initially identified the Co-Ni bearing arsenide as the cubic di-arsenide, smaltite but after obtaining and studying additional material from his own mine he pronounced it to be a new orthorhombic tri-arsenide for which he proposed the name "Chathamite"....In the mid 1850s Genth (in Goodrich, 1854) questioned Shepard's identification and suggested that Chathamite was simply an iron rich variety of the cubic arsenide chloanthite (a misconception that perpetuated up to, and including, the 7th edition of Dana's Manual of Mineralogy). As it turns out, Shepard's Chathamite is indeed orthorhombic, but today would be classified as a nickel-cobalt rich loellingite." Gray (2005)
ⓘ Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Habit: clay
Colour: greenish
Description: A greenish clay mineral, forming a vein or zone, near the contact of a nepheline-bearing dike and granite gneiss has been identified as nontronite. It was studied by X-ray diffraction.
ⓘ Opal
Formula: SiO2 · nH2O
Localities: Reported from at least 22 localities in this region.
Habit: encrustations
Colour: colorless
Fluorescence: bright green
Description: Gelatinous coatings and encrustations, some easily visible without using a UV lamp, on both pegmatite and host gneiss. UV response best in SW, progressively less in MW to LW.
ⓘ Opal var. Opal-AN
Formula: SiO2 · nH2O
Localities: Reported from at least 21 localities in this region.
Habit: encrustations
Colour: colorless
Fluorescence: bright green
Description: Gelatinous coatings and encrustations, some easily visible without using a UV lamp, on both pegmatite and host gneiss. UV response best in SW, progressively less in MW to LW.
ⓘ Orthoclase
Formula: K(AlSi3O8)
Description: "The single specimen at Yale described by Scovil (1992) from the old Brush collection was labeled before results reported by Cameron, Eugene N. and others. (1954) PEGMATITE INVESTIGATIONS 1942-45 NEW ENGLAND. U.S. Geological Survey, Professional Paper 255 and Stugard (1958) Pegmatites of the Middletown Area, Connecticut USGS Bulletin 1042-Q, that show the K-feldspar of the Middletown pegmatite district to be microcline." (Harold Moritz information)
ⓘ Oxy-dravite
Formula: Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
ⓘ Palermoite
Formula: Li2SrAl4(PO4)4(OH)4
Colour: colorless
Description: "A colorless acicular mineral, found by the author in a vug of messelite, at the State Forest Mine in East Hampton, does not fit the description of any typical species except palermoite. Unfortunately, very little was obtained; an excellent sample was sent away for testing, but was evidently lost" (Schooner 1961). Most likely, this was a very poor guess.
References:
Schooner (1961)
ⓘ Paragonite
Formula: NaAl2(AlSi3O10)(OH)2
Habit: anhedral
Colour: white to gray
Description: Sillimanite, collected in a quartz vein through schist, is altered, in a few samples, to a very soft, greasy-feeling, white or gray material. X-ray study indicates a mixture of fine-grained paragonite and subsidiary pyrophyllite. A fingernail easily scratches it.
ⓘ Parsonsite
Formula: Pb2(UO2)(PO4)2
Habit: alteration of uraninite
Description: Schooner (circa 1985) reports: "A soft uraninite alteration, on a Wesleyan University sample from the Strickland quarry, gave the X-ray pattern of parsonsite. The available material was consumed in testing."
ⓘ Petalite
Formula: LiAl(Si4O10)
Habit: massive
Colour: white with brown rind - overall tan appearance
Description: massive, embedded in pollucite
ⓘ Petscheckite
Formula: UFe(Nb,Ta)2O8
ⓘ Phenakite
Formula: Be2SiO4
Description: Richard Schooner collected a specimen showing a few "tiny colorless" crystals described as "short-prismatic, with compound terminations" in a vug with spessartine crystals. Gunnar Bjareby identified them as phenakite. Anthony Albini now possesses this specimen.
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Description: reported as a small amount, probably in the enclosing schist at pegmatites are notoriously Mg-poor.
ⓘ Phosphophyllite
Formula: Zn2Fe 2+(PO4)2 · 4H2O
Colour: green
Description: "occurs as a hydrothermal alteration of sphalerite and triphylite, in vugs of messelite, with vivianite, at the State Forest Mine in East Hampton. Very few specimens have been found, and they are small; the crystals are green and quite glassy, the largest being about an eighth of an inch in diameter. The author suspected the identity of this material from the time he discovered it, several years ago, but it was not confirmed until recently. Some of the optical data follows: R. I. 1.615; optical angle 45 degrees, more or less; optic sign negative; birefringence high." (Schooner 1961)
ⓘ Phosphuranylite
Formula: KCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Description: "Phosphouranylite is associated with autunite, torbernite, and uranophane (or their dehydrated forms) on old specimens from...the Rock Landing quarry. The identification was made by Clifford Frondel." Schooner (circa 1980s).
ⓘ Pickeringite
Formula: MgAl2(SO4)4 · 22H2O
Description: Reference provides no details, probably a surficial alteration product of the ore minerals.
ⓘ Piemontite
Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
ⓘ 'Pinite'
Habit: massive, fine-grained alteration of spodumene
Colour: grayish shades of green, yellow, purple
Description: Multi-colored alteration pseudomorphs after spodumene, with a soapy feel, like serpentine. Schooner (1958) elaborates: "During the active period at the locality, a bewildering array of 'pinite' specimens were encountered. They were of all colors and resembled jade, petrified wood, and other things. Many were perfect pseudomorphs after the original mineral."
ⓘ Pitticite ?
Formula: (Fe, AsO4, H2O) (?)
Description: Reported by Dick Schooner in Januzzi (1976) but no details provided.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Planerite
Formula: Al6(PO4)2(PO3OH)2(OH)8 · 4H2O
Description: Schooner (circa 1985) writes that "A Boston Mineral Club list of Strickland quarry minerals, dating from about 1940, describes planerite as green crusts on fractured quartz. Several pieces of that material, resembling variscite, were collected at the time; unfortunately, none is now available for study."
ⓘ Plattnerite ?
Formula: PbO2
Colour: sooty black
Description: From Schooner (circa 1980s): "Plattnerite formed a sooty black coating on altered galena, with considerable massicot and litharge, at one of the Middletown lead mines. The identity was established by X-ray study."
ⓘ Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Colour: colorless
Description: In the lithium mineral zone of the western pegmatite. Masses and cleavages to as much as a foot in length and six to eight inches in width have been recovered. It is closely associated with spodumene crystals, rubellite and other colored lithium tourmalines, caesium beryl, lepidolite, montebrasite, blue and white cleavelandite, and smoky quartz. It has a platy structure or it occurs as fractured masses, the fractures often being filled by dull white chalcedony.
ⓘ Powellite
Formula: Ca(MoO4)
Habit: powdery
Colour: white, yellowish or greenish
Description: powdery white, yellowish or greenish material lining vugs, or as excellent plates alternating with plates of molybdenite.
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
Localities: Reported from at least 8 localities in this region.
Habit: Botryoidal aggregates
Colour: pale green
ⓘ 'Pumpellyite Subgroup'
Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
Habit: mossy
Colour: dark olive green
Description: Fine-grained, mossy lining in small vesicles in the Higganum Dike. Examined by Harold Moritz Oct. 30, 2025.
ⓘ Purpurite
Formula: Mn3+(PO4)
Habit: encrustation
Colour: purple
Description: Rare alteration of lithiophilite. Parent lithiophilite has Mn/Mn + Fe = 0.97 (Moore, 2000).
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 36 localities in this region.
Habit: cuboctahedral to pyritohedral, cubic
Colour: brassy
Description: In the pegmatite, typically as small crystals typically <1/2-inch, commonly with a red hematite patina, in pockets with K-rich albite of the mineralized cleavalandite-quartz intermediate zone, associated with fluorite, calcite, micro-quartz, cookeite, bertrandite. Some altered to goethite. In Alpine-cleft type openings in the host schist of the Collins Hill Formation as aggregates of staggered cubes to 5mm on albite with chlorite and anatase.
ⓘ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
ⓘ 'Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)'
Formula: (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
References:
Specimen in collection of Andrew Kruegel
Harold Moritz CollectionIdentified by Harold Moritz: Visual Identification
ⓘ Pyrolusite
Formula: Mn4+O2
Localities: Reported from at least 9 localities in this region.
Description: No pyrolusite dendrite or staining in a granite pegmatite in the world has been verified as pyrolusite. The name was a mistake in the nineteenth century which has been widely publicized.
ⓘ Pyromorphite
Formula: Pb5(PO4)3Cl
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Pyrophanite
Formula: Mn2+TiO3
Habit: tabular
Colour: dark red to black
Description: "Very small brilliant tabular crystals, looking black through dark red under strong magnification, are commonly embedded in tephroite, kutnohorite, pyroxymangite, and spessartine from the Jail Hill quarry. Studies at the USGS and the University of Michigan have confirmed the identification."
ⓘ Pyrophyllite
Formula: Al2Si4O10(OH)2
Description: Sillimanite, collected in a quartz vein through schist, is altered, in a few samples, to a very soft, greasy-feeling, white or gray material. X-ray study indicates a mixture of fine-grained paragonite and subsidiary pyrophyllite. A fingernail easily scratches it.
ⓘ Pyroxmangite
Formula: Mn2+SiO3
Habit: cleavable masses
Colour: pink
Description: Bustamite and pyroxmangite occurred at the Jail Hill quarry; one light pink, with spessartine and dolomite; the other a deeper pink, and with a more fibrous cleavage, associated with tephroite and yellow spessartine. X-ray patterns were carefully studied and spectrographic tests made. Only a few rich specimens were found. Earlier, both of these minerals had been dismissed as "rhodonite".
ⓘ Pyrrhotite
Formula: Fe1-xS
Localities: Reported from at least 14 localities in this region.
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 102 localities in this region.
Habit: trigonal prisms
Colour: colorless to pale grey, black, light brown, pink, yellow
Description: Besides the ubiquitous massive material in all zones, large, distorted and rough pocket crystals, clear to smoky, sometimes gemmy, are known from the quartz-cleavelandite intermediate zone. These crystals are overgrowths on earlier fragmented quartz with "healed" faces and are commonly coated with albite, cookeite or fragments of matrix and included with white, acicular, hollow cavities of a former unknown mineral. Glassy micro-crystals associated with K-rich albite, cookeite, micas, bertrandite in secondary crystallizations.
ⓘ Quartz var. Amethyst
Formula: SiO2
Description: The Min. Record reference cited lists amethyst localities. The inclusion of Haddam refers to Dick Schooner's 1961 Mineralogy of Connecticut, which states the following: "The author has seen a three inch specimen of amethyst crystals, with albite, from a pegmatite in Haddam; this was exhibited at the Peabody Museum of Yale University." A check with the Peabody collection turned up YPM MIN 058341 described by staff as "mostly massive quartz (sorta smoky), some albite with muscovite, and what appears to be a secondary fracture or cavity (not enough there to know) filling of quartz that starts as a thin layer (~1mm) of white quartz against the massive quartz, that expands into a cluster of amethyst crystals. Nice color." Donated by J. F. Schairer. No specific locality recorded.
ⓘ Quartz var. Blue Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
Colour: white
Fluorescence: pale yellow-white
Description: filling fractures in pollucite masses. As "snowflake" inclusions in pollucite.
ⓘ Quartz var. Citrine
Formula: SiO2
Description: Schooner (1958): "Citrine, of fine gem quality, was formerly found at the Strickland Quarry, and a few stones were facetted from it... evidently the “topaz” which some people say was taken from there."
ⓘ Quartz var. Ferruginous Quartz
Formula: SiO2
ⓘ Quartz var. Milky Quartz
Formula: SiO2
Habit: elongated prismatic with rhombohedral terminations
Colour: white
Description: Smaller pocket crystals are often the milky variety.
ⓘ Quartz var. Rock Crystal
Formula: SiO2
Habit: large distorted crystals and delicate elongated micro-crystals
Colour: colorless
Description: Large blocky, distorted crystals that are overgrowths on earlier fragmented quartz can be colorless, though they are typically smoky. In vugs with secondary minerals such as K-rich albite, bertrandite, micas, cookeite, etc., it occurs as delicate, glassy, doubly-terminated microcrystals sometimes in spindly aggregates.
ⓘ Quartz var. Rose Quartz
Formula: SiO2
Localities: Reported from at least 10 localities in this region.
Habit: massive
Colour: pale rose
Description: Massive material very rare.
ⓘ Quartz var. Smoky Quartz
Formula: SiO2
Localities: Reported from at least 32 localities in this region.
Habit: hexagonal prisms with rhombohedral terminations, sometimes flattened or etched, or oddly shaped overgrowths on earlier fragments
Colour: pale gray to black, brown
Description: Besides being a major component of the pegmatite matrix in general, where it is massive, it is abundant in miarolitic cavities as euhedral crystals. Some show phantoms or inclusions of schernikite fibers and elbaite and some are encrusted with cookeite blebs or show surface pit scars where cookeite was naturally removed. One 1.8-meter pocket contained nothing but jet-black smoky quartz crystals up to 14 cm in length. Etched crystals or oddly-shaped overgrowths on earlier fragments of quartz also known. Beautiful, doubly terminated crystals are often penetrated by elbaite. "One of these crystals, very flat and with several tourmalines inclosed, was worn as a watch-charm by the son of M. P. Gillette. This crystal in its natural state has as fine a polish as though it had just come from the lapidary's hand." (Davis, 1901).
ⓘ Rammelsbergite ?
Formula: NiAs2
Description: Reported by Dick Schooner in Januzzi (1976) p. 235, no details provided.
ⓘ Realgar ?
Formula: As4S4
Description: According to an unconfirmed report by Schooner (circa 1980s), very sparingly associated with arsenopyrite.
ⓘ Reddingite ?
Formula: (Mn2+,Fe2+)3(PO4)2 · 3H2O
Habit: micro-crystals
Colour: dark red
Description: Rare micro-crystals in altered lithiophilite may be this typical alteration product (Schooner, circa 1985).
ⓘ Rhodochrosite
Formula: MnCO3
ⓘ Rhodonite
Formula: CaMn3Mn[Si5O15]
Description: An historical error. May have been confused with thulite, which has been found in calc-silicate rocks (in Haddam) within the Collins Hill formation that hosts the western pegmatites in this area.
ⓘ Rockbridgeite ?
Formula: (Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5
Description: reported by Dick Schooner, no details in the reference.
ⓘ Roscherite ?
Formula: Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
Description: Needs verification because of lack of data. May be greifensteinite described after the reference date.
ⓘ Rutile
Formula: TiO2
Localities: Reported from at least 6 localities in this region.
ⓘ Rutile var. Strüverite
Formula: (Ti,Ta,Fe)O2
ⓘ Safflorite ?
Formula: (Co,Ni,Fe)As2
Description: Reported by Dick Schooner in Januzzi (1976) p. 235, no details provided.
ⓘ Samarskite-(Y)
Formula: YFe3+Nb2O8
Localities: Reported from at least 6 localities in this region.
ⓘ 'Scapolite'
Localities: Reported from at least 7 localities in this region.
ⓘ Scheelite
Formula: Ca(WO4)
Localities: Reported from at least 9 localities in this region.
Colour: white to pale gray
Fluorescence: blue-white
Description: After the Trumbull occurrence, this locality is probably the second best in Connecticut, though it was short-lived. Schooner (1958) states: "In December of [1953], on a most fortunate visit to the active Worth Quarry on Hog Hill in East Hampton, a couple of miles from the road cut locality, the author found a considerable amount of scheelite on the dump and even in the road. Trucks had been driving over one slab which must have weighed fifty or a hundred pounds! Several dozen very rich specimens, some of them pure masses up to three inches across and an inch thick, were collected. The color of this material was white or gray, and the fluorescence was vividly blue… though it was found during the day, without benefit of an ultra-violet light. The scheelite, with some greenish plagioclase and various sulfides, evidently came from quartz veins in the schist, adjacent to the pegmatite. The occurrence was not entirely erratic; in the summer of l954, W. P. Reid and the author obtained still more specimens. They showed broken crystals, up to two inches in diameter, in a matrix of quartz, grossularite, and either hornblende or actinolite. A few loose crystals, from one half to three quarters of an inch in diameter, were secured. Since that time, little if any scheelite has come out of the Worth Quarry... at least, to the author’s knowledge." Schooner (1961) provides a similar description: "The best locality is the active Worth Quarry on Hog Hill in East Hampton, where the mineral occurs in quartz veins adjacent to the pegmatite. On one occasion, in 1953, just after the author had become interested in the mineral, he collected perhaps a hundred pounds of scheelite specimens at this locality. Many loose pieces, up to a couple of inches across, were picked up on the dump; a large slab, about a foot square, consisted of virtually pure scheelite, between thin layers of biotite schist. A little pyrite and pyrrhotite accompanied the scheelite. On subsequent occasions, more examples were obtained… including several well developed crystals, half an inch in diameter. Among the later discoveries at the Worth Quarry, the scheelite has been in various matrices; they included actinolite and hornblende, with a gray plagioclase, probably labradorite, and a brownish grossularite. The scheelite is always highly fluorescent."
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Localities: Reported from at least 58 localities in this region.
Habit: short trigonal prisms, doubly-terminated
Colour: black
Description: "Excellent doubly-terminated crystals of black tourmaline, 1 to 2 inches in length, and 1/2 to 1 inch in diameter are found at the Iolite locality, often covered with incrustation of autunite." (Davis, 1901).
ⓘ Scorodite
Formula: Fe3+AsO4 · 2H2O
Habit: botryoidal crusts, pyramidal microcrystals
Colour: pale-green, violet-pink
Description: "in botryoidal crusts that are almost sub-translucent" associated with arsenolite (Januzzi 1976); "Common as pale-green masses resulting from the decomposition of arsenopyrite" (Schairer 1931) Very rare violet-pink microcrystals embedded in matrix.
ⓘ Scorzalite ?
Formula: Fe2+Al2(PO4)2(OH)2
Colour: blue
Description: "Several lean examples of scorzalite and siderite, labeled "Rock Landing quarry", came from the Charles Thomas collection. They had been obtained when the locality was active in the late 1930s. The scorzalite, erroneously called "vivianite" on the label, is of a rich blue color and partly crystallized. The X-ray pattern suggests a composition somewhere between scorzalite and lazulite. A little augelite is intergrown." Schooner (circa 1980s).
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Siderite
Formula: FeCO3
Localities: Reported from at least 6 localities in this region.
Habit: drusy
Colour: brown
Description: siderite layers up to 1/2 inch were common in a vein of marcasite, cronstedtite, grunerite, and quartz. Nice little curved brown drusy crystals are present on a few specimens.
ⓘ Sillénite ?
Formula: Bi12SiO20
Habit: coating
Colour: white or yellowish
Description: According to Schooner (circa 1980s) a "thin white or yellowish coating on bismuthinite crystals" may be this mineral. Needs confirmation.
ⓘ Sillimanite (TL)
Formula: Al2(SiO4)O
Localities: Reported from at least 14 localities in this region.
ⓘ Skutterudite
Formula: CoAs3
Description: "Shepard [1837] initially identified the Co-Ni bearing arsenide as the cubic di-arsenide, smaltite but after obtaining and studying additional material from his own mine he pronounced it to be a new orthorhombic tri-arsenide for which he proposed the name "Chathamite"....In the mid 1850s Genth (in Goodrich, 1854) questioned Shepard's identification and suggested that Chathamite was simply an iron rich variety of the cubic arsenide chloanthite (a misconception that perpetuated up to, and including, the 7th edition of Dana's Manual of Mineralogy). As it turns out, Shepard's Chathamite is indeed orthorhombic, but today would be classified as a nickel-cobalt rich loellingite." Gray (2005)
ⓘ Smithsonite ?
Formula: ZnCO3
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
Colour: white
Description: Much altered to zeolites.
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
Localities: Reported from at least 17 localities in this region.
Habit: Dodecahedral
Colour: blood red
Description: Crystals are translucent and partly gemmy, some perfectly formed, reached up to 15 cm across. Seybert's (1823) analysis showed twice as much Mn oxide as Fe oxide, unusual as most garnets from the Middletown pegmatite district are almandine.
ⓘ Sphalerite
Formula: ZnS
Localities: Reported from at least 13 localities in this region.
ⓘ Spinel
Formula: MgAl2O4
ⓘ Spodumene
Formula: LiAlSi2O6
Habit: elongated prisms
Colour: exterior tan to pale grey, interior white to lavender
Fluorescence: lavender-pink in SW, orange-pink in LW
Description: Tons of fragmented crystals were in the dumps, many well terminated. Most crystals etched on the exterior to a "woody" appearance, some crystals altered to pinite. The interior of good crystals is white to lavender and translucent with some rare gem material. Schooner (1958) says that "Rather large crystals, a yard long and a foot wide, were abundant when the locality was active. During the last period of operation, in l954, a great deal of the mineral was uncovered in the lower east wall of the main pit. Part of a wedge-shaped vein of lithium minerals was composed of virtually solid white spodumene. Green and lavender material was also present there, associated with pollucite, amblygonite, lepidolite, and cleavelandite. Most of the green and some of the pink has a good orange fluorescence and a vivid and long sustained orange phosphorescence under short-wave ultra-violet light. Cleavages are still found in the old dumps. Several fine specimens of translucent to semi-transparent light purple kunzite have been secured in recent years."
ⓘ Spodumene var. Kunzite
Formula: LiAlSi2O6
Habit: elongated prisms
Colour: lavender
Fluorescence: pale orange-pink
Description: Found in the cores of normal spodumene
ⓘ Spurrite
Formula: Ca5(SiO4)2(CO3)
Colour: bluish-gray
Description: Schooner (circa 1985): "In some of the wollastonite pods at the Strickland quarry, bluish-gray spurrite occurs as very thin layers with grossularite and larnite. X-ray confirmation was obtained from a number of samples. Spurrite also is mixed with the granular wollastonite and its embedded minute gehlenite crystals; only X-ray peaks revealed its presence in that material." Studied by Waldemar T. Schaller of USGS.
ⓘ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Localities: Reported from at least 6 localities in this region.
Habit: prismatic
Colour: dark brown
Description: Thumbnail sized crystals in the Collins Hill Schist west of the pegmatite.
ⓘ Stewartite ?
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Colour: pale yellow
Description: According to Schooner (circa 1985) occurs as tiny yellow crystals in altered hureaulite. Specimens of hureaulite from the dump bulldozed in 1984 show small areas of a yellow alteration, possibly stewartite. So far an SEM-EDS analysis (2017) of yellow grains in lithiophilite have proven to be natrophilite.
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
Localities: Reported from at least 8 localities in this region.
ⓘ Stilpnomelane
Formula: K4Fe2+48[Si64Al8]O164(OH)52 · nH2O
Habit: botryoidal aggregates
Colour: bronze
Description: As tiny botryoidal aggregates on other minerals in fractures.
ⓘ Strunzite
Formula: Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
Habit: radiating acicular needles and fibers
Colour: golden to yellow-orange
Description: "occurs as typical aggregates of golden fibers, associated with [messelite] and siderite, as well as sulfides....The strunzite is rare, and no more than half a dozen specimens have been secured...and none of them could be described as of outstanding quality. The identity of this material was confirmed by Clifford Frondel of Harvard University." (Schooner 1958) Associated with triphylite secondaries.
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ 'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Localities: Reported from at least 8 localities in this region.
✪ Tantalite-(Fe)
Formula: Fe2+Ta2O6
Habit: rectangular prismatic
Colour: black with bluish iridescence
Description: One columbite-tantalite crystal (https://www.mindat.org/photo-275489.html) suspected from its high SG of being tantalite was analyzed by SEM-EDS and found to be tantalite-(Fe). There may be more as each crystal would need to be tested to confirm and few have been.
ⓘ Tantalite-(Mn)
Formula: Mn2+Ta2O6
Habit: elongated to tabular prisms
Colour: deep maroon with iridescence
Description: Usually as small (<1") but well-formed crystals in the mineralized part of the cleavelandite-quartz intermediate zone. Analyses, even just SG, are generally lacking. Schooner (1958) reports: "W. G. Foye reported [it] in 1929. An analysis of such material, made for Ronald Januzzi, showed the manganese oxide content to be 13.96% [but what are the other elements' abundances?]. Many rich specimens have been found on the old dumps. The author obtained several superb examples at the vein of lithium minerals in the bottom of the quarry, in 1954. Half inch crystals, and larger masses, were embedded in a matrix of cleavelandite and amblygonite [montebrasite]. The material showed a gradation from dark brown to bright red... the latter nearly transparent and of great beauty. Some was iridescent. The luster was resinous and the manganotantalite exhibited a perfect parting which gave it a micaceous appearance." But some more brown crystals have later proven to be wodginite, which was not recognized in 1958. Many reddish crystals with some transparency have been labeled tantalite-(Mn) but visually could be columbite-(Mn) and such crystals without supporting analyses should be labeled as columbite-(Mn)-tantalite-(Mn) series.
ⓘ Tanteuxenite-(Y)
Formula: Y(Ta,Nb,Ti)2(O,OH)6
Habit: subhedral grains
Colour: dark brown
Description: Semi-quantitative data from SEM/EDS analyzed using the method of Ercit (2005).
ⓘ 'Tapiolite'
Formula: (Fe,Mn)(Ta,Nb)2O6
Description: Bruce Jarnot did find and confirm tapiolite from the Hale Quarry. There were two specimens, one a complex crystal group (about 0.5 inches) and the other a similar size group that had altered 50% to pyrochlore. It resembled a hard yellow marble that, when split, showed the remains of tapiolite xls in the center. The IDs were made by EDX (element ratios) and X-ray unit crystal pattern.
✪ Tapiolite-(Fe)
Formula: Fe2+Ta2O6
Habit: Complex, twinned short prisms or pyramidal tetragonal.
Colour: black
Description: Three specimens are known, with very similar with crystals about 3-4 cm, in quartz, albite and/or muscovite. Two are complexly crystallized apparently twinned, that somewhat resemble garnets, but of course black and submetallic. Other than one specimen from the Hale Quarry, this is the only known Connecticut location for this mineral. An additional three specimens were collected in the 1980's by David Busha but remained unidentified until 2019.
ⓘ Tephroite
Formula: Mn2+2(SiO4)
Habit: anhedral
Colour: tan, brown, dark brown
Description: Reported by Dick Schooner. Specimens mostly are pure masses of anhedral grains, or scattered grains associated with bustamite and spessartine, all with black staining. According to Schooner: "Several bodies of more complex mineralogy, within the spessartine, consisted for the most part of brownish tephroite, intimately intergrown with dolomite and kutnohorite, as well as yellow spessartine, alleghanyite, jacobsite, pyrophanite, etc. A few solid dark gray resinous-looking cleavages, up to an inch, were obtained. The main concentration was eventually removed as a boulder, over two feet in diameter, which may well hold the world's record for toughness; it took the author two days of steady pounding to reduce it!"
ⓘ Thorite
Formula: Th(SiO4)
ⓘ Thorite var. Thorogummite
Formula: (Th,U)(SiO4)1-x(OH)4x
ⓘ Titanite
Formula: CaTiO(SiO4)
Localities: Reported from at least 17 localities in this region.
Description: "A few very lean examples" Schooner (1958), probably from the surrounding metamorphic rocks.
ⓘ Todorokite ?
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Colour: black
Description: Reportedly one of the black Mn-rich alteration crusts.
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2
Localities: Reported from at least 7 localities in this region.
Habit: equant or flattened with multiple terminal forms
Colour: colorless to pale blue, orange (altered)
Description: First found in the mid-1950s and so often unrecognized in earlier collections, topaz occurs rarely as equant, rhombic cross-section crystals up to 1 cm in the cavities or more commonly up to 5.6 cm embedded in quartz-albite-muscovite matrix. Greasy, orange-brown crystals are partially or wholly altered to muscovite and were earlier mistaken for "pinite" pseudomorphs after spodumene.
ⓘ Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Localities: Reported from at least 9 localities in this region.
Habit: tabular, micros
Colour: green
Description: Associated with other uranium minerals. Properly it is metatorbernite.
ⓘ 'Tourmalinated Quartz'
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
Localities: Reported from at least 19 localities in this region.
Habit: elongated, striated, trigonal prisms capped by pinacoids or rhombohedra
Colour: black to green, rarely pink to colorless, with yellow, pink, pale green, blue terminations
Description: See comments under elbaite and schorl.
ⓘ 'Tourmaline var. Achroite'
ⓘ 'Tourmaline var. Indicolite'
ⓘ 'Tourmaline var. Rubellite'
ⓘ 'Tourmaline var. Verdelite'
ⓘ 'Tourmaline var. Watermelon Tourmaline'
Habit: unterminated, elongated prisms
Colour: pink core, pale green rims
Description: In the mineralized core zone.
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Habit: needles
Colour: white
Description: Microcrystals in voids in amphibolite with adularia.
ⓘ Triphylite
Formula: LiFe2+PO4
ⓘ Triphylite var. Ferrisicklerite
Formula: Li1-x(Fe3+xFe2+1-x)PO4
Description: sparingly with the triphylite
References:
Schooner (1958)
ⓘ Triplite
Formula: Mn2+2(PO4)F
Habit: massive
Colour: reddish to maroon
Description: As irregular masses, commonly in bunches intergrown with blue elbaite and dark purple lepidolite and hosted by cleavelandite/elbaite/quartz. Tan alteration rind around the edges is probably hydroxylapatite (see below) and Schooner reports finding hureaulite. These minerals are characteristic of alteration from primary lithiophilite but none has ever been reported, so it is difficult to say if the triplite is primary. Masses of garnet may appear similar, but are harder and show a network of rhombic etch patterns on fracture surfaces. Descriptions from the literature are below: Shannon (1920) - "bunches and masses up to several inches across of a flesh red to brownish red material resembling massive garnet, which upon analysis proves to be triplite...In places the triplite has oxidized to a black manganese oxide, which stains the cleavelandite." Foye (1922) - "intimately intergrown with a dark blue, massive tourmaline". Schooner (1958) – "Large masses, up to a foot square, occurred in a mixture of that mineral and cleavelandite. The author was fortunate in securing a large specimen of completely fresh material from a weathered boulder on the oldest dump. Most examples show what are probably crude crystals, bordered with blue tourmaline. Much of the triplite is altered to a cellular tan mineral which has not been thoroughly identified. One piece, evidently from deep in the pegmatite, has undergone a more complex alteration to a foliated dull green substance…negatively identified as not being dickinsonite. Such material could easily be confused with chloritized garnet. Indeed, the fresh triplite resembles massive garnet; its comparative softness and its cleavages should distinguish it. Mary E. Mrose x-rayed this triplite for the author and found it to give a characteristic pattern. E. V. Shannon, who originally described the occurrence in 1920, gave the following analysis: calcium oxide 3.18, magnesium oxide 0.58, iron oxide 4.95, manganese oxide 52.40, phosphorous oxide 32.81, fluorine 9.09, water 0.35, and remainder 1.17. The specific gravity of the sample was 3.58." Schooner (1961) - "Reddish-brown cleavages, bordered with blue tourmaline, definitely identified as such, were apparently quite common in the original lepidolite pit, where that mineral, together with quartz and cleavelandite, occurred as coarse intergrowths. The author found a solid mass, over six inches across, in the old dump there; some of the triplite bodies must easily have been a foot in diameter. In many cases, the triplite is partially or completely altered to a granular yellow or tan mineral; x-ray study proves this to be apatite, of a surprisingly normal kind. This work was done by Peacor."
ⓘ Uraninite
Formula: UO2
Localities: Reported from at least 30 localities in this region.
Habit: octahedral
Colour: black
Description: Excellent crystals, up to half an inch in diameter, they were easy to obtain around 1941 and 1942.
ⓘ 'Uranmicrolite (of Hogarth 1977)'
Formula: (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Habit: dipyramidal
Colour: very dark brown to black
Description: Reportedly analyzed by Schooner. Identified by Bruce Jarnot (personal communication 2011) by: 1) euhedral microlite dipyramid crystal form, 2) strong uranium peak in its EDX spectrum, 3) strongly radioactive. Associations and properties of anhedral grains are similar to that of analyzed tanteuxenite-(Y) and could prove to be this mineral.
ⓘ Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Localities: Reported from at least 16 localities in this region.
Description: fine examples
ⓘ Vandendriesscheite
Formula: PbU7O22 · 12H2O
Habit: pseudomorphs after uraninite
Colour: yellow
Description: "In a study at Harvard University, in 1964, both fourmarierite and vandendriesscheite were identified, by X-ray diffraction, as components of hard "gummite" pseudomorphs after uraninite from the Rock Landing quarry. Fourmarierite is reddish; vandendriesscheite, yellow. The material came from the Charles Thomas collection." Schooner (circa 1980s).
ⓘ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Localities: Reported from at least 6 localities in this region.
Description: A component of the calc-silicate rocks in the Collins Hill Formation, which hosts the western pegmatites.
ⓘ Vivianite
Formula: Fe2+Fe2+2(PO4)2 · 8H2O
Habit: elongated, terminated prisms and cleavable masses
Colour: dark blue
Description: "transparent blue vivianite crystals, some spear-shaped, in vugs of messelite and siderite...While the vivianite crystals are small, they are of fine quality." (Schooner 1961) Also as coatings on triphylite and associated with messelite, siderite, mitridatite, strunzite and sulfides.
ⓘ Wardite
Formula: NaAl3(PO4)2(OH)4 · 2H2O
Description: Schooner (circa 1985) reports that "Wardite and wavellite occurred in a fine-grained replacement of natromontebrasite from the Strickland quarry. The rest of the sample was quartz. X-ray study revealed their existence." Natromontebrasite was discredited in 2007 as a mixture of wardite, montebrasite and lacroixite, which were all documented here by the study Schooner mentions.
✪ Whitmoreite
Formula: Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Habit: radiating acicular crystals in micro spherical "naval mine" aggregates
Colour: golden brown
Description: Reported by Dick Schooner, no details in the references. Identified by Van King from posted photographs.
ⓘ Wodginite
Formula: Mn2+Sn4+Ta2O8
Habit: tapered, elongated prisms
Colour: dark brown with iridescence
Description: Fantastic tapered crystals, 2 to 6 cm long, translucent and sometimes showing a little iridescence. Typically in cleavelandite, associated with cassiterite, foitite grading into elbaite, gobbinsite and quartz. Long misidentified as cassiterite or tantalite-(Mn) (going back to even 1935 - see Jarnot (2011)) and too bad as it was not "discovered" until 1963 in Canada and Australia. Strickland could have been the type locality had it been recognized as a new mineral when the quarry was active. Schooner (circa 1990) summarizes its identification: A decade ago, the author found a loose 4 inch mass of montebrasite, studded with sharply formed little dark brown crystals, on one of the Strickland quarry dumps. These were tentatively classified as manganotantalite, despite visual differences. The X-ray pattern was later rechecked, with wodginite in mind, and the fit was close enough to warrant a spectrographic test, which showed the presence of tin. Pete J. Dunn and Peter Cerny have since made probe studies of the material. The original mass was broken into several rich specimens. The wodginite is in equant crystals, transparent under magnification, with a few little tabular amber crystals of manganotantalite. This material obviously represented only part of a concentration of wodginite in montebrasite. Several years ago, Bruce Jarnot encountered a small cleavelandite boulder, on the long narrow dump along the western edge of the hill, yielding maybe a dozen superb thumbnails of sharp, euhedral, reddish-black wodginite crystals, of a pyramidal aspect, up to almost an inch. These, too, were thought to be manganotantalite, until X-ray study proved them to be wodginite. At that point, the author became suspicious of an iridescent brown mineral, embedded in columnar green elbaite, collected around 1950. The X-ray pattern shows it to be wodginite, in yet another habit. Obviously, the mineral has been mistaken for other things!
ⓘ Wollastonite
Formula: Ca3(Si3O9)
Habit: granular, bladed
Colour: white
Fluorescence: orange
Description: Found by Schooner in 1953 and 1954, and reported in Schooner (1955): "It is pure white in color, and granular massive in form. Fairly large pieces were obtained from the cores of lenticular quartz-actinolite-grossularite-diopside "horses" [pods] in biotite schist, from near the pegmatite. The mineral is photosensitive, turning brown and ugly if exposed to sunlight for very long. It is faintly fluorescent, in a pale orange tint, and strongly phosphorescent, in a brighter shade of the same color, under short-wave ultra-violet radiations". In Schooner (1958) there is more information: "W. T. Schaller, of the U. S. Geological Survey, made an optical study of this wollastonite, to determine its manganese content through a correlation with the refractive index…which was 1.632, indicating about one percent of iron and manganese oxides." Followed by this passage in Schooner (circa 1985): "Waldemar T. Schaller studied samples submitted by the author. The wollastonite, with tiny embedded tan gehlenite crystals, and occasional light yellow crystals of grossularite, occupies the centers of a few pods, surrounded by concentric zones of fine-grained tan grossularite, white quartz, and greenish diopside. Spurrite, larnite, vesuvianite, and calcite are rarely associated. Spurrite may, indeed, be mixed, granularly, with wollastonite. Small bladed crystals of wollastonite are seen on a few specimens."
ⓘ Wulfenite ?
Formula: Pb(MoO4)
Description: The reference provides no details.
ⓘ Wurtzite ?
Formula: (Zn,Fe)S
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Wurtzite var. Voltzite ?
Formula: (Zn,Fe,Mn) S [with O C H ]
Description: Included in a list of minerals with no details on occurrence of confirmation.
ⓘ Xanthoxenite ?
Formula: Ca4Fe3+2(PO4)4(OH)2 · 3H2O
Colour: yellow
Description: Schooner (1961) - "[Mary] Mrose [of USGS] x-rayed the altered triplite...and found evidence of this mineral".
ⓘ Xenotime-(Y)
Formula: Y(PO4)
Localities: Reported from at least 6 localities in this region.
Habit: bipyramidal
Colour: brown
Description: Microcrystals in pegmatite matrix found in 2019. SEM-EDS spectra here https://www.mindat.org/photo-1007556.html https://www.mindat.org/photo-1007557.html
ⓘ Yttrocolumbite-(Y) ?
Formula: Y(U4+,Fe2+)Nb2O8
Description: Extremely rare mineral. No chemical data available.
ⓘ 'Zinnwaldite'
Habit: micaceous
Colour: golden-brown, purplish-grey
Description: Found in the cleavelandite-quartz intermediate zone. Schooner (circa 1985) reports that "X-ray and spectrographic study, quite recently, have identified rich specimens, consisting of coarse golden-brown aggregates with zoned elbaite-schorl tourmaline. It can also be purplish-gray."
ⓘ Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 24 localities in this region.
Habit: bipyramids
Colour: grey-brown
Fluorescence: yellow
Description: Small crystals scattered through all zones except the quartz core.
ⓘ Zircon var. Calyptolite
Formula: Zr(SiO4)
ⓘ Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]
Localities: Reported from at least 11 localities in this region.
ⓘ Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Habit: subhedral, striated, elongated prismatic
Colour: pink
Fluorescence: purple
Description: Crystals in matrix can reach a few cm. Associated with anorthite, quartz, actinolite, scapolite.
ⓘ Zoisite var. Thulite
Formula: {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)
Habit: subhedral, striated, elongated prismatic
Colour: pink
Fluorescence: purple
Description: Crystals in matrix can reach a few cm. Associated with anorthite, quartz, actinolite, scapolite.

Gallery:

◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2ⓘ Actinolite
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Actinolite, etc.

Ultramafic rock bodies, Haddam, Middlesex County, Connecticut, USA
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Actinolite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Actinolite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
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Actinolite, etc.

Ultramafic rock bodies, Haddam, Middlesex County, Connecticut, USA
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Actinolite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Actinolite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
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Actinolite, etc.

Ultramafic rock bodies, Haddam, Middlesex County, Connecticut, USA
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Actinolite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
Na(AlSi3O8)ⓘ Albite
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Albite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Albite

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
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Albite

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Albite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Albite

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
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Albite

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Albite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Albite

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
Na(AlSi3O8)ⓘ Albite var. Cleavelandite
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Cleavelandite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Cleavelandite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Cleavelandite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Cleavelandite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Cleavelandite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Cleavelandite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Cleavelandite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Cleavelandite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)ⓘ Allanite-(Ce)
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Allanite-(Ce), etc.

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
Fe2+3Al2(SiO4)3ⓘ Almandine
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Almandine, etc.

Clark Hill prospect, East Hampton, Middlesex County, Connecticut, USA
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Almandine

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Almandine

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Almandine, etc.

Clark Hill prospect, East Hampton, Middlesex County, Connecticut, USA
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Almandine

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Almandine

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Almandine, etc.

Clark Hill prospect, East Hampton, Middlesex County, Connecticut, USA
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Almandine

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
ⓘ 'Almandine-Spessartine Series'
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Almandine-Spessartine Series, etc.

Dripps Road, Middletown, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series, etc.

Dripps Road, Middletown, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series, etc.

Dripps Road, Middletown, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series, etc.

Dripps Road, Middletown, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series, etc.

Dripps Road, Middletown, Middlesex County, Connecticut, USA
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Almandine-Spessartine Series

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
Na(AlSi2O6) · H2Oⓘ Analcime
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Analcime, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Analcime, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Analcime, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
TiO2ⓘ Anatase
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Anatase

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Anatase

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Anatase

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Anatase

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Anatase

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Anatase

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
CaSO4ⓘ Anhydrite
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Anhydrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
KFe2+3(AlSi3O10)(OH)2ⓘ Annite
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Annite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Annite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
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Annite, etc.

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
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Annite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Annite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
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Annite, etc.

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
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Annite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Annite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
◻Mg2Mg5(Si8O22)(OH)2ⓘ Anthophyllite
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Anthophyllite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
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Anthophyllite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
FeAsSⓘ Arsenopyrite
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
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Arsenopyrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
Ca(UO2)2(PO4)2 · 10-12H2Oⓘ Autunite
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Autunite, etc.

Andrews Quarry, Portland, Middlesex County, Connecticut, USA
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Autunite, etc.

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
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Autunite, etc.

Andrews Quarry, Portland, Middlesex County, Connecticut, USA
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Autunite, etc.

Andrews Quarry, Portland, Middlesex County, Connecticut, USA
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Autunite, etc.

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
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Autunite, etc.

Andrews Quarry, Portland, Middlesex County, Connecticut, USA
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Autunite, etc.

Andrews Quarry, Portland, Middlesex County, Connecticut, USA
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Autunite, etc.

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
Ca2Fe2+Fe3+Si5O14(OH)ⓘ Babingtonite
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Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Babingtonite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
Ca4Be2Al2Si9O26(OH)2ⓘ Bavenite
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Bavenite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
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Bavenite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
Ca(UO2)6O4(OH)6 · 8H2Oⓘ Becquerelite
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Becquerelite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Becquerelite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Becquerelite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Becquerelite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Becquerelite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Becquerelite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Be4(Si2O7)(OH)2ⓘ Bertrandite
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Bertrandite

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
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Bertrandite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Bertrandite, etc.

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Bertrandite

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
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Bertrandite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
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Bertrandite, etc.

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Bertrandite

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
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Bertrandite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Be3Al2(Si6O18)ⓘ Beryl
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Beryl, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Beryl

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Beryl

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
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Beryl, etc.

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Beryl, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Beryl

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Beryl

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
trans.png
Beryl, etc.

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Beryl, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Beryl

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
ⓘ Beryl var. Aquamarine
trans.png
Aquamarine, etc.

Pelton's Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Pelton's Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Pelton's Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Pelton's Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Pelton's Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Aquamarine, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Be3Al2(Si6O18)ⓘ Beryl var. Heliodor
trans.png
Heliodor

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Heliodor

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Heliodor

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Heliodor

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Heliodor

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Heliodor

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
Be3Al2(Si6O18)ⓘ Beryl var. Morganite
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Morganite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2ⓘ 'Biotite'
trans.png
Biotite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Biotite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Biotite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
Bi2S3ⓘ Bismuthinite
trans.png
Bismuthinite, etc.

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Case Prospect No. 4, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Case Prospect No. 4, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
trans.png
Bismuthinite, etc.

Case Prospect No. 4, Case Quarries, Portland, Middlesex County, Connecticut, USA
(BiO)2CO3ⓘ Bismutite
trans.png
Bismutite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Case Prospect No. 4, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Case Prospect No. 4, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Bismutite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
CaMn2+(Si2O6)ⓘ Bustamite
trans.png
Bustamite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Bustamite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Bustamite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
ⓘ 'Calciomicrolite'
trans.png
Calciomicrolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Calciomicrolite, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
CaCO3ⓘ Calcite
trans.png
Calcite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Calcite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Calcite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Calcite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Calcite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Calcite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Calcite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Calcite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
SnO2ⓘ Cassiterite
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cassiterite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
ⓘ 'Chabazite var. Phacolite'
trans.png
Phacolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Phacolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Phacolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
CuFeS2ⓘ Chalcopyrite
trans.png
Chalcopyrite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Chalcopyrite, etc.

Haddam, Middlesex County, Connecticut, USA
ⓘ 'Chlorite Group'
trans.png
Chlorite Group, etc.

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Chlorite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
BeAl2O4ⓘ Chrysoberyl
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Chrysoberyl, etc.

Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
Fe2+Nb2O6ⓘ Columbite-(Fe)
trans.png
Columbite-(Fe)

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe), etc.

Case Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe), etc.

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe), etc.

Case Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe), etc.

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe), etc.

Case Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Mt. Tom prospects, Moodus, East Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Mt. Tom prospects, Moodus, East Haddam, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Fe)-Columbite-(Mn) Series, etc.

Mt. Tom prospects, Moodus, East Haddam, Middlesex County, Connecticut, USA
Mn2+Nb2O6ⓘ Columbite-(Mn)
trans.png
Columbite-(Mn)

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
ⓘ 'Columbite-(Mn)-Tantalite-(Mn) Series'
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-(Mn)-Tantalite-(Mn) Series, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
ⓘ 'Columbite-Tantalite'
trans.png
Columbite-Tantalite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-Tantalite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Columbite-Tantalite, etc.

Portland, Middlesex County, Connecticut, USA
(LiAl4◻)[AlSi3O10](OH)8ⓘ Cookeite
trans.png
Cookeite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Cookeite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Mg2Al4Si5O18ⓘ Cordierite
trans.png
Cordierite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Cordierite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
CaB(SiO4)(OH)ⓘ Datolite
trans.png
Datolite

Middletown, Middlesex County, Connecticut, USA
trans.png
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Datolite

Middletown, Middlesex County, Connecticut, USA
trans.png
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Datolite

Middletown, Middlesex County, Connecticut, USA
trans.png
Datolite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
CaMgSi2O6ⓘ Diopside
trans.png
Diopside, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Diopside

Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Diopside, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Diopside

Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Diopside, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Diopside

Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA
Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)ⓘ Elbaite
trans.png
Elbaite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Elbaite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Elbaite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Elbaite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)ⓘ Epidote
trans.png
Epidote, etc.

Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Epidote, etc.

Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Epidote

Hazen quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Epidote, etc.

Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Epidote, etc.

Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Epidote

Hazen quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Epidote, etc.

Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Epidote, etc.

Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA
Co3(AsO4)2 · 8H2Oⓘ Erythrite
trans.png
Erythrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Erythrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Erythrite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
(Mg,Fe)Al2Si3O10 · 2H2Oⓘ 'Fahlunite'
trans.png
Fahlunite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
trans.png
Fahlunite, etc.

Timms Hill, Haddam, Middlesex County, Connecticut, USA
Ca2Mn2+(PO4)2 · 2H2Oⓘ Fairfieldite
trans.png
Fairfieldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fairfieldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fairfieldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Ca5(PO4)3Fⓘ Fluorapatite
trans.png
Fluorapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite, etc.

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite, etc.

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorapatite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
KCa4(Si8O20)(F,OH) · 8H2Oⓘ Fluorapophyllite-(K)
trans.png
Fluorapophyllite-(K)

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K)

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K), etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K)

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K)

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K), etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K)

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorapophyllite-(K)

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
CaF2ⓘ Fluorite
trans.png
Fluorite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Fluorite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
CaF2ⓘ Fluorite var. Chlorophane
trans.png
Chlorophane

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Chlorophane

Riverside Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Chlorophane, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Chlorophane

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Chlorophane

Riverside Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Chlorophane, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Chlorophane

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Chlorophane

Riverside Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
ZnAl2O4ⓘ Gahnite
trans.png
Gahnite, etc.

Nike prospect, Portland, Middlesex County, Connecticut, USA
trans.png
Gahnite, etc.

Nike prospect, Portland, Middlesex County, Connecticut, USA
trans.png
Gahnite, etc.

Nike prospect, Portland, Middlesex County, Connecticut, USA
PbSⓘ Galena
trans.png
Galena, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Galena, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
X3Z2(SiO4)3ⓘ 'Garnet Group'
trans.png
Garnet Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Garnet Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Garnet Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2ⓘ Gedrite
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
trans.png
Gedrite, etc.

Chester, Middlesex County, Connecticut, USA
Fe3+O(OH)ⓘ Goethite
trans.png
Goethite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Goethite, etc.

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
Cⓘ Graphite
trans.png
Graphite, etc.

Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Graphite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Graphite, etc.

Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Graphite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Graphite, etc.

Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Graphite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Ca3Al2(SiO4)3ⓘ Grossular
trans.png
Grossular

Hazen quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Grossular

Hazen quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Grossular

Hazen quarry, Haddam, Middlesex County, Connecticut, USA
Mn3+O(OH)ⓘ Groutite
trans.png
Groutite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Groutite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Groutite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
CaSO4 · 2H2Oⓘ Gypsum
trans.png
Gypsum

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Gypsum

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Gypsum

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Gypsum

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Gypsum

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Gypsum

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Gypsum

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Gypsum

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
Fe2O3ⓘ Hematite
trans.png
Hematite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Hematite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Hematite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Hematite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Hematite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Hematite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
Mn2+5(PO3OH)2(PO4)2 · 4H2Oⓘ Hureaulite
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hureaulite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Ca5(PO4)3(OH)ⓘ Hydroxylapatite
trans.png
Hydroxylapatite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Hydroxylapatite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Zn5(CO3)2(OH)6ⓘ Hydrozincite
trans.png
Hydrozincite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Hydrozincite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Hydrozincite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Hydrozincite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Hydrozincite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Hydrozincite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
U4+Fe2+Nb2O8ⓘ Ishikawaite
trans.png
Ishikawaite, etc.

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite, etc.

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite, etc.

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite, etc.

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite, etc.

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Ishikawaite

Penfield Quarry, Portland, Middlesex County, Connecticut, USA
Mn2+Fe3+2O4ⓘ Jacobsite
trans.png
Jacobsite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Jacobsite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Jacobsite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
KAlSi3O8ⓘ 'K Feldspar var. Adularia'
trans.png
Adularia, etc.

"Foothold Cleft", Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Adularia, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Adularia

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Adularia, etc.

"Foothold Cleft", Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Adularia, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Adularia

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Adularia, etc.

"Foothold Cleft", Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Adularia, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
Al2(SiO4)Oⓘ Kyanite
trans.png
Kyanite, etc.

Dimension stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Kyanite, etc.

Pegmatite outcrops, Durham, Middlesex County, Connecticut, USA
trans.png
Kyanite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Kyanite, etc.

Dimension stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Kyanite, etc.

Pegmatite outcrops, Durham, Middlesex County, Connecticut, USA
trans.png
Kyanite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Kyanite, etc.

Dimension stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Kyanite, etc.

Pegmatite outcrops, Durham, Middlesex County, Connecticut, USA
ⓘ 'Lepidolite'
trans.png
Lepidolite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Lepidolite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
LiMn2+PO4ⓘ Lithiophilite
trans.png
Lithiophilite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Lithiophilite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
FeAs2ⓘ Löllingite
trans.png
Löllingite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Löllingite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
(Fe3+0.67◻0.33)Fe3+2O4ⓘ Maghemite
trans.png
Maghemite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Maghemite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Maghemite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
◻Ca2(Mg4Al)(Si7Al)O22(OH)2ⓘ Magnesio-hornblende
trans.png
Magnesio-hornblende

East Hampton, Middlesex County, Connecticut, USA
trans.png
Magnesio-hornblende

East Hampton, Middlesex County, Connecticut, USA
trans.png
Magnesio-hornblende

East Hampton, Middlesex County, Connecticut, USA
trans.png
Magnesio-hornblende

East Hampton, Middlesex County, Connecticut, USA
trans.png
Magnesio-hornblende

East Hampton, Middlesex County, Connecticut, USA
trans.png
Magnesio-hornblende

East Hampton, Middlesex County, Connecticut, USA
Fe2+Fe3+2O4ⓘ Magnetite
trans.png
Magnetite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite

Magnetite locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite

Magnetite locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Magnetite, etc.

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
ⓘ 'Manganese Oxides var. Manganese Dendrites'
trans.png
Manganese Dendrites, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Manganese Dendrites, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Manganese Dendrites, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Manganese Dendrites, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Manganese Dendrites, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Manganese Dendrites, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
Ca4Al6Si6O24CO3ⓘ Meionite
trans.png
Meionite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Meionite

Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meionite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Meionite

Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meionite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Meionite

Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Ca2Fe2+(PO4)2 · 2H2Oⓘ Messelite
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Messelite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
Ca(UO2)2(PO4)2 · 6H2Oⓘ Meta-autunite
trans.png
Meta-autunite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meta-autunite

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meta-autunite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Meta-autunite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meta-autunite

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meta-autunite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Meta-autunite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Meta-autunite

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Cu(UO2)2(PO4)2 · 8H2Oⓘ Metatorbernite
trans.png
Metatorbernite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Hale Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Hale Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Metatorbernite, etc.

Hale Quarry, Portland, Middlesex County, Connecticut, USA
K(AlSi3O8)ⓘ Microcline
trans.png
Microcline

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline, etc.

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline, etc.

Arnold Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Microcline, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
A2-mTa2X6-wZ1-nⓘ 'Microlite Group'
trans.png
Microlite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Microlite Group

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Microlite Group, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Microlite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Microlite Group

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Microlite Group, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Microlite Group, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Microlite Group

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
MoS2ⓘ Molybdenite
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
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Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Molybdenite

Feldspar Corp. pegmatite quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
Ce(PO4)ⓘ Monazite-(Ce)
trans.png
Monazite-(Ce), etc.

Case Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce), etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce)

Case Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce), etc.

Case Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce), etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce)

Case Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce), etc.

Case Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Monazite-(Ce), etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
LiAl(PO4)(OH)ⓘ Montebrasite
trans.png
Montebrasite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Montebrasite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
KAl2(AlSi3O10)(OH)2ⓘ Muscovite
trans.png
Muscovite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Muscovite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
KAl2(AlSi3O10)(OH)2ⓘ Muscovite var. Schernikite (FRL)
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schernikite, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
S8ⓘ Native Sulphur
trans.png
Native Sulphur, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Native Sulphur, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Native Sulphur, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
SiO2 · nH2Oⓘ Opal var. Opal-AN
trans.png
Opal-AN

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Opal-AN

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Opal-AN, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Opal-AN

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Opal-AN

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Opal-AN, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Opal-AN

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Opal-AN

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
LiAl(Si4O10)ⓘ Petalite
trans.png
Petalite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Petalite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Petalite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
UFe(Nb,Ta)2O8ⓘ Petscheckite
trans.png
Petscheckite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Petscheckite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Petscheckite, etc.

Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
Be2SiO4ⓘ Phenakite
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Phenakite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
ⓘ 'Pinite'
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Pinite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pinite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pinite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pinite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pinite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pinite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
(Cs,Na)2(Al2Si4O12) · 2H2Oⓘ Pollucite
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Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Pollucite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
Ca2Al2Si3O10(OH)2ⓘ Prehnite
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Prehnite

Middlefield, Middlesex County, Connecticut, USA
trans.png
Prehnite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
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Prehnite

Middlefield, Middlesex County, Connecticut, USA
trans.png
Prehnite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Prehnite

Middlefield, Middlesex County, Connecticut, USA
trans.png
Prehnite, etc.

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
FeS2ⓘ Pyrite
trans.png
Pyrite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pyrite, etc.

Middletown, Middlesex County, Connecticut, USA
trans.png
Pyrite

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Pyrite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pyrite, etc.

Middletown, Middlesex County, Connecticut, USA
trans.png
Pyrite

Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
trans.png
Pyrite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pyrite, etc.

Middletown, Middlesex County, Connecticut, USA
Fe1-xSⓘ Pyrrhotite
trans.png
Pyrrhotite, etc.

Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Haddam, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Pyrrhotite, etc.

Haddam, Middlesex County, Connecticut, USA
SiO2ⓘ Quartz
trans.png
Quartz

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz

Civilian Conservation Corps prospect, Haddam, Middlesex County, Connecticut, USA
trans.png
Quartz, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
SiO2ⓘ Quartz var. Amethyst
trans.png
Amethyst

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Amethyst, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Amethyst

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Amethyst

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Amethyst, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Amethyst

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Amethyst

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Amethyst, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
SiO2ⓘ Quartz var. Rose Quartz
trans.png
Rose Quartz

Great Hill Pond Brook pegmatite, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Rose Quartz

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Rose Quartz

Great Hill Pond Brook pegmatite, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Rose Quartz

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Rose Quartz

Great Hill Pond Brook pegmatite, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Rose Quartz

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
SiO2ⓘ Quartz var. Smoky Quartz
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Smoky Quartz

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

State Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
trans.png
Smoky Quartz

Quarry Hill, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
MnCO3ⓘ Rhodochrosite
trans.png
Rhodochrosite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Rhodochrosite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
CaMn3Mn[Si5O15]ⓘ Rhodonite
trans.png
Rhodonite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Rhodonite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Rhodonite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Rhodonite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Rhodonite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Rhodonite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
(Ti,Ta,Fe)O2ⓘ Rutile var. Strüverite
trans.png
Strüverite, etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Strüverite, etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Strüverite, etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
YFe3+Nb2O8ⓘ Samarskite-(Y)
trans.png
Samarskite-(Y), etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Samarskite-(Y), etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Samarskite-(Y), etc.

Portland, Middlesex County, Connecticut, USA
ⓘ 'Scapolite'
trans.png
Scapolite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Scapolite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Scapolite, etc.

Portland, Middlesex County, Connecticut, USA
Ca(WO4)ⓘ Scheelite
trans.png
Scheelite

Worth and Selden Quarries, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scheelite, etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scheelite

Worth and Selden Quarries, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scheelite, etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scheelite

Worth and Selden Quarries, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scheelite, etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)ⓘ Schorl
trans.png
Schorl

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

State Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
trans.png
Schorl

Long Hill prospects, Haddam, Middlesex County, Connecticut, USA
Fe3+AsO4 · 2H2Oⓘ Scorodite
trans.png
Scorodite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scorodite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Scorodite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
FeCO3ⓘ Siderite
trans.png
Siderite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Siderite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Siderite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Siderite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Siderite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Siderite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
Al2(SiO4)Oⓘ Sillimanite (TL)
trans.png
Sillimanite, etc.

East Hampton, Middlesex County, Connecticut, USA
trans.png
Sillimanite

Sillimanite type locality, Chester, Middlesex County, Connecticut, USA
trans.png
Sillimanite

Sillimanite type locality, Chester, Middlesex County, Connecticut, USA
trans.png
Sillimanite, etc.

East Hampton, Middlesex County, Connecticut, USA
trans.png
Sillimanite

Sillimanite type locality, Chester, Middlesex County, Connecticut, USA
trans.png
Sillimanite

Sillimanite type locality, Chester, Middlesex County, Connecticut, USA
trans.png
Sillimanite, etc.

East Hampton, Middlesex County, Connecticut, USA
trans.png
Sillimanite

Sillimanite type locality, Chester, Middlesex County, Connecticut, USA
Mn2+3Al2(SiO4)3ⓘ Spessartine
trans.png
Spessartine, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA
trans.png
Spessartine

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
ZnSⓘ Sphalerite
trans.png
Sphalerite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

Middletown lead mines, Middletown, Middlesex County, Connecticut, USA
trans.png
Sphalerite, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
LiAlSi2O6ⓘ Spodumene
trans.png
Spodumene

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene

Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Spodumene, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
LiAlSi2O6ⓘ Spodumene var. Kunzite
trans.png
Kunzite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Kunzite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Kunzite

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
Fe2+2Al9Si4O23(OH)ⓘ Staurolite
trans.png
Staurolite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Staurolite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Staurolite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Staurolite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Staurolite, etc.

Great Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Staurolite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
M6-7[Al8-9Si27-28O72] · nH2Oⓘ 'Stilbite Subgroup'
trans.png
Stilbite Subgroup, etc.

State Route 9 and State Route 81 Interchange, Higganum, Haddam, Middlesex County, Connecticut, USA
trans.png
Stilbite Subgroup, etc.

State Route 9 and State Route 81 Interchange, Higganum, Haddam, Middlesex County, Connecticut, USA
trans.png
Stilbite Subgroup, etc.

State Route 9 and State Route 81 Interchange, Higganum, Haddam, Middlesex County, Connecticut, USA
Mn2+Ta2O6ⓘ Tantalite-(Mn)
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Tantalite-(Mn), etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
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Tantalite-(Mn), etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Tantalite-(Mn), etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tantalite-(Mn), etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tantalite-(Mn), etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Tantalite-(Mn), etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tantalite-(Mn), etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tantalite-(Mn), etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
Y(Ta,Nb,Ti)2(O,OH)6ⓘ Tanteuxenite-(Y)
trans.png
Tanteuxenite-(Y), etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tanteuxenite-(Y), etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tanteuxenite-(Y), etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
Fe2+Ta2O6ⓘ Tapiolite-(Fe)
trans.png
Tapiolite-(Fe), etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe)

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe)

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe), etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe)

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe)

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe), etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Tapiolite-(Fe)

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
(Th,U)(SiO4)1-x(OH)4xⓘ Thorite var. Thorogummite
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Thorogummite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Thorogummite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Thorogummite, etc.

Rock Landing Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
CaTiO(SiO4)ⓘ Titanite
trans.png
Titanite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Titanite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
trans.png
Titanite

Reed's Gap Quarry, Durham, Middlesex County, Connecticut, USA
Al2(SiO4)(F,OH)2ⓘ Topaz
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Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Topaz, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Cu(UO2)2(PO4)2 · 12H2Oⓘ Torbernite
trans.png
Torbernite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Torbernite, etc.

Hale Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Torbernite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Torbernite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Torbernite, etc.

Hale Quarry, Portland, Middlesex County, Connecticut, USA
trans.png
Torbernite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Torbernite

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Torbernite, etc.

Hale Quarry, Portland, Middlesex County, Connecticut, USA
AD3G6(T6O18)(BO3)3X3Zⓘ 'Tourmaline'
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Tourmaline, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tourmaline

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tourmaline, etc.

Tourmaline locality, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Tourmaline, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tourmaline

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tourmaline, etc.

Tourmaline locality, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
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Tourmaline, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Tourmaline

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
LiFe2+PO4ⓘ Triphylite
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triphylite, etc.

State Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
Mn2+2(PO4)Fⓘ Triplite
trans.png
Triplite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Triplite, etc.

Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
UO2ⓘ Uraninite
trans.png
Uraninite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Uraninite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uraninite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Uraninite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Uraninite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uraninite, etc.

Jail Hill Road locality, Haddam, Middlesex County, Connecticut, USA
trans.png
Uraninite

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Uraninite, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7ⓘ 'Uranmicrolite (of Hogarth 1977)'
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Uranmicrolite (of Hogarth 1977), etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uranmicrolite (of Hogarth 1977), etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uranmicrolite (of Hogarth 1977), etc.

Slocum prospect, East Hampton, Middlesex County, Connecticut, USA
Ca(UO2)2(SiO3OH)2 · 5H2Oⓘ Uranophane
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Uranophane, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Pegmatite outcrops, Durham, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Pegmatite outcrops, Durham, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Uranophane, etc.

Pegmatite outcrops, Durham, Middlesex County, Connecticut, USA
Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9ⓘ Vesuvianite
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Vesuvianite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
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Vesuvianite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Vesuvianite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Vesuvianite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Vesuvianite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Vesuvianite, etc.

Portland, Middlesex County, Connecticut, USA
trans.png
Vesuvianite

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
trans.png
Vesuvianite, etc.

Portland, Middlesex County, Connecticut, USA
Mn2+Sn4+Ta2O8ⓘ Wodginite
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Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Wodginite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
ⓘ 'Zinnwaldite'
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Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
trans.png
Zinnwaldite, etc.

Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Zr(SiO4)ⓘ Zircon
trans.png
Zircon, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
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Zircon

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Zircon, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
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Zircon, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Zircon

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
trans.png
Zircon, etc.

White Rocks Quarry, White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
trans.png
Zircon, etc.

Case Quarries, Portland, Middlesex County, Connecticut, USA
trans.png
Zircon

Nathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
ⓘNative Silver ?1.AA.05Ag
ⓘGraphite1.CB.05aC
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite ?2.BA.35Ag2S
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGreenockite ?2.CB.45CdS
ⓘWurtzite
var. Voltzite ?		2.CB.45(Zn,Fe,Mn) S [with O C H ]
ⓘ ?2.CB.45(Zn,Fe)S
ⓘBreithauptite ?2.CC.05NiSb
ⓘNickeline2.CC.05NiAs
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘBismuthinite2.DB.05Bi2S3
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘLöllingite2.EB.15aFeAs2
ⓘRammelsbergite ?2.EB.15aNiAs2
ⓘSafflorite ?2.EB.15a(Co,Ni,Fe)As2
ⓘArsenopyrite2.EB.20FeAsS
ⓘvar. Danaite2.EB.20(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
ⓘCobaltite ?2.EB.25CoAsS
ⓘGersdorffite2.EB.25NiAsS
ⓘNickelskutterudite ?2.EC.05NiAs3
ⓘSkutterudite ?2.EC.05CoAs3
ⓘRealgar ?2.FA.15aAs4S4
ⓘCuprobismutite2.JA.10aCu8AgBi13S24
Group 3 - Halides
ⓘFluorite
var. Chlorophane		3.AB.25CaF2
ⓘ3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘ'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series'4..
ⓘ'var. Wolframoixiolite'4..(Nb,W,Ta,Fe,Mn)2O4
ⓘ'Microlite Group'4.00.A2-mTa2X6-wZ1-n
ⓘ'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
ⓘ'var. Uranpyrochlore (of Hogarth 1977)'4.00.(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
ⓘLitharge4.AC.20PbO
ⓘMassicot4.AC.25PbO
ⓘChrysoberyl4.BA.05BeAl2O4
ⓘGahnite4.BB.05ZnAl2O4
ⓘGalaxite ?4.BB.05Mn2+Al2O4
ⓘJacobsite4.BB.05Mn2+Fe3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘMaghemite4.BB.15(Fe3+0.67◻0.33)Fe3+2O4
ⓘMinium ?4.BD.05Pb3O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘvar. Iron(III)-bearing Ilmenite4.CB.05(Fe2+,Fe3+)TiO3
ⓘPyrophanite4.CB.05Mn2+TiO3
ⓘClaudetite ?4.CB.45As2O3
ⓘArsenolite ?4.CB.50As2O3
ⓘBismite4.CB.60Bi2O3
ⓘSillénite ?4.CB.70Bi12SiO20
ⓘQuartz
var. Amethyst		4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘvar. Citrine4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Rose Quartz4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘvar. Rock Crystal4.DA.05SiO2
ⓘvar. Milky Quartz4.DA.05SiO2
ⓘvar. Blue Quartz4.DA.05SiO2
ⓘvar. Ferruginous Quartz4.DA.05SiO2
ⓘOpal
var. Opal-AN		4.DA.10SiO2 · nH2O
ⓘ4.DA.10SiO2 · nH2O
ⓘCassiterite4.DB.05SnO2
ⓘPlattnerite ?4.DB.05PbO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘRutile4.DB.05TiO2
ⓘvar. Strüverite4.DB.05(Ti,Ta,Fe)O2
ⓘTapiolite-(Fe)4.DB.10Fe2+Ta2O6
ⓘIshikawaite4.DB.25U4+Fe2+Nb2O8
ⓘSamarskite-(Y)4.DB.25YFe3+Nb2O8
ⓘYttrocolumbite-(Y) ?4.DB.25Y(U4+,Fe2+)Nb2O8
ⓘColumbite-(Fe)4.DB.35Fe2+Nb2O6
ⓘTantalite-(Fe)4.DB.35Fe2+Ta2O6
ⓘColumbite-(Mn)4.DB.35Mn2+Nb2O6
ⓘTantalite-(Mn)4.DB.35Mn2+Ta2O6
ⓘWodginite4.DB.40Mn2+Sn4+Ta2O8
ⓘAnatase4.DD.05TiO2
ⓘBismutotantalite4.DE.30BiTaO4
ⓘEuxenite-(Y) ?4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘTanteuxenite-(Y)4.DG.05Y(Ta,Nb,Ti)2(O,OH)6
ⓘHydrokenoelsmoreite
var. Ferritungstite ?		4.DH.15◻2(W,Fe3+)2(O,OH)6(H2O)
ⓘ ?4.DH.15◻2W2O6(H2O)
ⓘLiandratite4.DH.35U(Nb,Ta)2O8
ⓘPetscheckite4.DH.35UFe(Nb,Ta)2O8
ⓘTodorokite ?4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
ⓘUraninite4.DL.05UO2
ⓘGoethite4.FD.10Fe3+O(OH)
ⓘGroutite4.FD.10Mn3+O(OH)
ⓘManganite ?4.FD.15Mn3+O(OH)
ⓘBirnessite4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
ⓘBecquerelite4.GB.10Ca(UO2)6O4(OH)6 · 8H2O
ⓘFourmarierite4.GB.25Pb(UO2)4O3(OH)4 · 4H2O
ⓘVandendriesscheite4.GB.40PbU7O22 · 12H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘRhodochrosite5.AB.05MnCO3
ⓘSiderite5.AB.05FeCO3
ⓘSmithsonite ?5.AB.05ZnCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘKutnohorite5.AB.10CaMn2+(CO3)2
ⓘAragonite5.AB.15CaCO3
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘAurichalcite ?5.BA.15(Zn,Cu)5(CO3)2(OH)6
ⓘHydrozincite5.BA.15Zn5(CO3)2(OH)6
ⓘBastnäsite-(Ce)5.BD.20aCe(CO3)F
ⓘBismutite5.BE.25(BiO)2CO3
ⓘBeyerite ?5.BE.35Ca(BiO)2(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite ?7.AD.30CaSO4
ⓘAnglesite7.AD.35PbSO4
ⓘBaryte7.AD.35BaSO4
ⓘJarosite ?7.BC.10KFe3+3(SO4)2(OH)6
ⓘLinarite7.BC.65PbCu(SO4)(OH)2
ⓘHexahydrite ?7.CB.25Mg(H2O)6(SO4)
ⓘMelanterite7.CB.35Fe2+(H2O)6(SO4) · H2O
ⓘEpsomite7.CB.40MgSO4 · 7H2O
ⓘGoslarite ?7.CB.40ZnSO4 · 7H2O
ⓘPickeringite7.CB.85MgAl2(SO4)4 · 22H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘvar. Selenite7.CD.40CaSO4 · 2H2O
ⓘJohannite ?7.EB.05Cu(UO2)2(SO4)2(OH)2 · 8H2O
ⓘPowellite7.GA.05Ca(MoO4)
ⓘScheelite7.GA.05Ca(WO4)
ⓘWulfenite ?7.GA.05Pb(MoO4)
ⓘFerrimolybdite7.GB.30Fe2(MoO4)3 · nH2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘTriphylite
var. Ferrisicklerite		8.AB.10Li1-x(Fe3+xFe2+1-x)PO4
ⓘHeterosite8.AB.10Fe3+(PO4)
ⓘLithiophilite8.AB.10LiMn2+PO4
ⓘNatrophilite8.AB.10NaMn2+PO4
ⓘPurpurite8.AB.10Mn3+(PO4)
ⓘLithiophilite
var. Sicklerite		8.AB.10Li1-x(Mn3+xMn2+1-x)PO4
ⓘTriphylite8.AB.10LiFe2+PO4
ⓘGraftonite ?8.AB.20Fe2+Fe2+2(PO4)2
ⓘXenotime-(Y)8.AD.35Y(PO4)
ⓘMonazite-(Ce)8.AD.50Ce(PO4)
ⓘHerderite ?8.BA.10CaBe(PO4)F
ⓘHydroxylherderite8.BA.10CaBe(PO4)(OH)
ⓘAmblygonite ?8.BB.05LiAl(PO4)F
ⓘMontebrasite8.BB.05LiAl(PO4)(OH)
ⓘTriplite8.BB.10Mn2+2(PO4)F
ⓘScorzalite ?8.BB.40Fe2+Al2(PO4)2(OH)2
ⓘRockbridgeite ?8.BC.10(Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5
ⓘAugelite8.BE.05Al2(PO4)(OH)3
ⓘArrojadite-(KFe) ?8.BF.05(KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2
ⓘDickinsonite-(KMnNa)8.BF.05(KNa)(Mn2+◻)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2
ⓘLacroixite8.BH.10NaAl(PO4)F
ⓘPalermoite ?8.BH.25Li2SrAl4(PO4)4(OH)4
ⓘBrazilianite8.BK.05NaAl3(PO4)2(OH)4
ⓘCrandallite ?8.BL.10CaAl3(PO4)(PO3OH)(OH)6
ⓘFluorapatite8.BN.05Ca5(PO4)3F
ⓘHydroxylapatite8.BN.05Ca5(PO4)3(OH)
ⓘFluorapatite
var. Manganese-bearing Fluorapatite		8.BN.05(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
ⓘMimetite ?8.BN.05Pb5(AsO4)3Cl
ⓘPyromorphite8.BN.05Pb5(PO4)3Cl
ⓘPhosphophyllite8.CA.40Zn2Fe 2+(PO4)2 · 4H2O
ⓘHureaulite8.CB.10Mn2+5(PO3OH)2(PO4)2 · 4H2O
ⓘReddingite ?8.CC.05(Mn2+,Fe2+)3(PO4)2 · 3H2O
ⓘScorodite8.CD.10Fe3+AsO4 · 2H2O
ⓘLudlamite8.CD.20Fe2+3(PO4)2 · 4H2O
ⓘAnnabergite8.CE.40Ni3(AsO4)2 · 8H2O
ⓘErythrite8.CE.40Co3(AsO4)2 · 8H2O
ⓘVivianite8.CE.40Fe2+Fe2+2(PO4)2 · 8H2O
ⓘFairfieldite8.CG.05Ca2Mn2+(PO4)2 · 2H2O
ⓘMesselite8.CG.05Ca2Fe2+(PO4)2 · 2H2O
ⓘGrayite8.CJ.45(Th,Pb,Ca)(PO4) · H2O
ⓘMoraesite8.DA.05Be2(PO4)(OH) · 4H2O
ⓘRoscherite ?8.DA.10Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
ⓘDiadochite8.DB.05Fe3+2(PO4)(SO4)(OH) · 6H2O
ⓘPitticite ?8.DB.05(Fe, AsO4, H2O) (?)
ⓘFerroberaunite8.DC.Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
ⓘWhitmoreite8.DC.15Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
ⓘStrunzite8.DC.25Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
ⓘBeraunite ?8.DC.27Fe3+6(PO4)4O(OH)4 · 6H2O
ⓘLaueite8.DC.30Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
ⓘStewartite ?8.DC.30Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
ⓘPlanerite ?8.DD.15Al6(PO4)2(PO3OH)2(OH)8 · 4H2O
ⓘEosphorite8.DD.20Mn2+Al(PO4)(OH)2 · H2O
ⓘMitridatite8.DH.30Ca2Fe3+3(PO4)3O2 · 3H2O
ⓘXanthoxenite ?8.DH.40Ca4Fe3+2(PO4)4(OH)2 · 3H2O
ⓘWardite8.DL.10NaAl3(PO4)2(OH)4 · 2H2O
ⓘMorinite ?8.DM.05NaCa2Al2(PO4)2(OH)F4 · 2H2O
ⓘParsonsite8.EA.10Pb2(UO2)(PO4)2
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
ⓘTorbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
ⓘMeta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6H2O
ⓘMetatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
ⓘPhosphuranylite8.EC.10KCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Group 9 - Silicates
ⓘChrysotile ?9.00.Mg3(Si2O5)(OH)4
ⓘEucryptite ?9.AA.05LiAlSiO4
ⓘPhenakite9.AA.05Be2SiO4
ⓘTephroite9.AC.05Mn2+2(SiO4)
ⓘLarnite9.AD.05Ca2SiO4
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘThorite9.AD.30Th(SiO4)
ⓘvar. Thorogummite9.AD.30(Th,U)(SiO4)1-x(OH)4x
ⓘZircon9.AD.30Zr(SiO4)
ⓘvar. Calyptolite9.AD.30Zr(SiO4)
ⓘvar. Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
ⓘEuclase ?9.AE.10BeAl(SiO4)(OH)
ⓘSillimanite (TL)9.AF.05Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘAlleghanyite9.AF.45Mn2+5(SiO4)2(OH)2
ⓘTitanite9.AG.15CaTiO(SiO4)
ⓘCerite-(CeCa) ?9.AG.20(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
ⓘSpurrite9.AH.15Ca5(SiO4)2(CO3)
ⓘDatolite9.AJ.20CaB(SiO4)(OH)
ⓘUranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘGehlenite9.BB.10Ca2Al[AlSiO7]
ⓘBertrandite9.BD.05Be4(Si2O7)(OH)2
ⓘHemimorphite ?9.BD.10Zn4Si2O7(OH)2 · H2O
ⓘAxinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
ⓘClinozoisite9.BG.05a(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘPiemontite9.BG.05a(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
ⓘAllanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
ⓘZoisite
var. Thulite		9.BG.10{Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)
ⓘ9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘVesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
ⓘBeryl
var. Aquamarine		9.CJ.05Be3Al2(Si6O18)
ⓘBazzite9.CJ.05Be3Sc2(Si6O18)
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘvar. Morganite9.CJ.05Be3Al2(Si6O18)
ⓘvar. Heliodor9.CJ.05Be3Al2(Si6O18)
ⓘvar. Goshenite9.CJ.05Be3Al2(Si6O18)
ⓘCordierite9.CJ.10Mg2Al4Si5O18
ⓘDravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘElbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘFoitite9.CK.05◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘOxy-dravite9.CK.05Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘJohannsenite ?9.DA.15CaMn2+Si2O6
ⓘAugite
var. Fassaite		9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
ⓘvar. Titanium-bearing Augite9.DA.15(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘSpodumene
var. Kunzite		9.DA.30LiAlSi2O6
ⓘ9.DA.30LiAlSi2O6
ⓘAnthophyllite9.DD.05◻Mg2Mg5(Si8O22)(OH)2
ⓘGedrite9.DD.05◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
ⓘCummingtonite9.DE.05◻Mg2Mg5(Si8O22)(OH)2
ⓘGrunerite9.DE.05◻Fe2+2Fe2+5(Si8O22)(OH)2
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘFerro-actinolite9.DE.10◻Ca2Fe2+5(Si8O22)(OH)2
ⓘFerro-hornblende9.DE.10◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
ⓘMagnesio-hornblende9.DE.10◻Ca2(Mg4Al)(Si7Al)O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘHastingsite9.DE.15NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
ⓘKaersutite9.DE.15NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
ⓘFerri-ghoseite9.DE.20◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
ⓘBavenite9.DF.25Ca4Be2Al2Si9O26(OH)2
ⓘBustamite9.DG.05CaMn2+(Si2O6)
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘBabingtonite9.DK.05Ca2Fe2+Fe3+Si5O14(OH)
ⓘRhodonite9.DK.05CaMn3Mn[Si5O15]
ⓘPyroxmangite9.DO.05Mn2+SiO3
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘFluorapophyllite-(K)9.EA.15KCa4(Si8O20)(F,OH) · 8H2O
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘPyrophyllite9.EC.10Al2Si4O10(OH)2
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘParagonite9.EC.15NaAl2(AlSi3O10)(OH)2
ⓘMuscovite
var. Schernikite (TL)		9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘAnnite9.EC.20KFe2+3(AlSi3O10)(OH)2
ⓘMasutomilite9.EC.20K(LiAlMn2+)[AlSi3O10]F2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘBityite9.EC.35CaLiAl2(AlBeSi2O10)(OH)2
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘNontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
ⓘCookeite9.EC.55(LiAl4◻)[AlSi3O10](OH)8
ⓘDickite9.ED.05Al2(Si2O5)(OH)4
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘHalloysite9.ED.10Al2Si2O5(OH)4 · n(H2O)
ⓘCaryopilite9.ED.15Mn2+3Si2O5(OH)4
ⓘCronstedtite9.ED.15Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘBismutoferrite9.ED.25Fe3+2Bi(SiO4)2(OH)
ⓘBementite ?9.EE.05Mn7Si6O15(OH)8
ⓘPetalite9.EF.05LiAl(Si4O10)
ⓘStilpnomelane9.EG.40K4Fe2+48[Si64Al8]O164(OH)52 · nH2O
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘMicrocline
var. Amazonite		9.FA.30K(AlSi3O8)
ⓘvar. Hyalophane9.FA.30(K,Ba)[Al(Si,Al)Si2O8]
ⓘ9.FA.30K(AlSi3O8)
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
ⓘAlbite
var. Oligoclase		9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
ⓘvar. Peristerite9.FA.35Na(AlSi3O8)
ⓘvar. Cleavelandite9.FA.35Na(AlSi3O8)
ⓘHelvine9.FB.10Be3Mn2+4(SiO4)3S
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
ⓘMeionite9.FB.15Ca4Al6Si6O24CO3
ⓘGonnardite9.GA.05(Na,Ca)2(Si,Al)5O10 · 3H2O
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
ⓘPollucite9.GB.05(Cs,Na)2(Al2Si4O12) · 2H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
ⓘGobbinsite9.GC.05Na5(Si11Al5)O32 · 11H2O
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Alkali Feldspar'-
ⓘ'Amphibole Supergroup'-AB2C5(T8O22)W2
ⓘ'Apophyllite Group'-AB4[Si8O20]X · 8H2O
ⓘ'Tourmaline
var. Achroite'		-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chabazite'-
ⓘ'Chlorophyllite'-
ⓘ'Chlorite Group'-
ⓘ'Fahlunite'-(Mg,Fe)Al2Si3O10 · 2H2O
ⓘ'Feldspar Group'-
ⓘ'Gmelinite Subgroup' ?-
ⓘ'Gummite'-
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Tourmaline
var. Indicolite'		-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Lepidolite'-
ⓘ'Limonite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Natromontebrasite'-
ⓘ'Pumpellyite Subgroup'-Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
ⓘ'Tourmaline
var. Rubellite'		-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O
ⓘ'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
ⓘ'Tapiolite'-(Fe,Mn)(Ta,Nb)2O6
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Uranmicrolite (of Hogarth 1977)'-(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
ⓘ'Fluor-uvite-Uvite Series' ?-
ⓘ'Tourmaline
var. Verdelite'		-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Zinnwaldite'-
ⓘ'Feldspar Group
var. Perthite'		-
ⓘ'Almandine-Spessartine Series'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Columbite-(Fe)-Columbite-(Mn) Series'-
ⓘ'Scapolite'-
ⓘ'Hornblende Root Name Group'-◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pinite'-
ⓘ'K Feldspar'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Columbite-Tantalite'-
ⓘ'Tourmaline
var. Watermelon Tourmaline'		-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Lanthanite' ?-REE3+2(CO3)3 · 8H2O
ⓘ'Chabazite
var. Phacolite'		-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Tourmalinated Quartz'-
ⓘ'Manganese Oxides
var. Manganese Dendrites'		-
ⓘ''-
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'Axinite Group'-
ⓘ'Copiapite Group'-
ⓘ'Lithiophilite-Triphylite Series' ?-
ⓘ'Columbite-(Mn)-Tantalite-(Mn) Series'-
ⓘ'Calciomicrolite'-
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Hⓘ AnniteKFe32+(AlSi3O10)(OH)2
Hⓘ Anthophyllite◻Mg2Mg5(Si8O22)(OH)2
Hⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Hⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Hⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Hⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ AugeliteAl2(PO4)(OH)3
Hⓘ BabingtoniteCa2Fe2+Fe3+Si5O14(OH)
Hⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Hⓘ BecquereliteCa(UO2)6O4(OH)6 · 8H2O
Hⓘ BementiteMn7Si6O15(OH)8
Hⓘ BerauniteFe63+(PO4)4O(OH)4 · 6H2O
Hⓘ BertranditeBe4(Si2O7)(OH)2
Hⓘ BismutoferriteFe23+Bi(SiO4)2(OH)
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Hⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Hⓘ BrazilianiteNaAl3(PO4)2(OH)4
Hⓘ CaryopiliteMn32+Si2O5(OH)4
Hⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hⓘ Cookeite(LiAl4◻)[AlSi3O10](OH)8
Hⓘ CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Hⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Hⓘ Cummingtonite◻Mg2Mg5(Si8O22)(OH)2
Hⓘ DiadochiteFe23+(PO4)(SO4)(OH) · 6H2O
Hⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Hⓘ DickiteAl2(Si2O5)(OH)4
Hⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ DatoliteCaB(SiO4)(OH)
Hⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ EosphoriteMn2+Al(PO4)(OH)2 · H2O
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ EpsomiteMgSO4 · 7H2O
Hⓘ ErythriteCo3(AsO4)2 · 8H2O
Hⓘ EuclaseBeAl(SiO4)(OH)
Hⓘ Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Hⓘ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Hⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Hⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Hⓘ Hydrokenoelsmoreite var. Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
Hⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Hⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Hⓘ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Hⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Hⓘ Gedrite◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
Hⓘ GobbinsiteNa5(Si11Al5)O32 · 11H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Hⓘ GoslariteZnSO4 · 7H2O
Hⓘ Grayite(Th,Pb,Ca)(PO4) · H2O
Hⓘ GroutiteMn3+O(OH)
Hⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Hⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Hⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ HexahydriteMg(H2O)6(SO4)
Hⓘ HureauliteMn52+(PO3OH)2(PO4)2 · 4H2O
Hⓘ Opal var. Opal-ANSiO2 · nH2O
Hⓘ HydroxylherderiteCaBe(PO4)(OH)
Hⓘ HydroxylapatiteCa5(PO4)3(OH)
Hⓘ HydrozinciteZn5(CO3)2(OH)6
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ JarositeKFe33+(SO4)2(OH)6
Hⓘ JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ LinaritePbCu(SO4)(OH)2
Hⓘ LudlamiteFe32+(PO4)2 · 4H2O
Hⓘ ManganiteMn3+O(OH)
Hⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Hⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Hⓘ MesseliteCa2Fe2+(PO4)2 · 2H2O
Hⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Hⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Hⓘ MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
Hⓘ MontebrasiteLiAl(PO4)(OH)
Hⓘ MoraesiteBe2(PO4)(OH) · 4H2O
Hⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ OpalSiO2 · nH2O
Hⓘ PalermoiteLi2SrAl4(PO4)4(OH)4
Hⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Hⓘ PhosphophylliteZn2Fe 2+(PO4)2 · 4H2O
Hⓘ PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ PickeringiteMgAl2(SO4)4 · 22H2O
Hⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Hⓘ Pitticite(Fe, AsO4, H2O) (?)
Hⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Hⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Hⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Hⓘ PyrophylliteAl2Si4O10(OH)2
Hⓘ Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
Hⓘ Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5
Hⓘ RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Hⓘ Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ ScoroditeFe3+AsO4 · 2H2O
Hⓘ ScorzaliteFe2+Al2(PO4)2(OH)2
Hⓘ StauroliteFe22+Al9Si4O23(OH)
Hⓘ StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Hⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Hⓘ StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
Hⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Hⓘ Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Hⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Hⓘ TopazAl2(SiO4)(F,OH)2
Hⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Hⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Hⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Hⓘ Fluor-uvite-Uvite Series
Hⓘ VandendriesscheitePbU7O22 · 12H2O
Hⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Hⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Hⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hⓘ WarditeNaAl3(PO4)2(OH)4 · 2H2O
Hⓘ WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
Hⓘ XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
Hⓘ Zinnwaldite
Hⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hⓘ Gypsum var. SeleniteCaSO4 · 2H2O
Hⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Hⓘ LanthaniteREE23+(CO3)3 · 8H2O
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
Hⓘ Hydrokenoelsmoreite◻2W2O6(H2O)
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Hⓘ FerroberauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
LiLithium
Liⓘ AmblygoniteLiAl(PO4)F
Liⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Liⓘ Cookeite(LiAl4◻)[AlSi3O10](OH)8
Liⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Liⓘ EucryptiteLiAlSiO4
Liⓘ Triphylite var. FerrisickleriteLi1-x(Fex3+Fe2+1-x)PO4
Liⓘ Spodumene var. KunziteLiAlSi2O6
Liⓘ LithiophiliteLiMn2+PO4
Liⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Liⓘ MontebrasiteLiAl(PO4)(OH)
Liⓘ PalermoiteLi2SrAl4(PO4)4(OH)4
Liⓘ PetaliteLiAl(Si4O10)
Liⓘ Lithiophilite var. SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Liⓘ SpodumeneLiAlSi2O6
Liⓘ TriphyliteLiFe2+PO4
Liⓘ Zinnwaldite
Liⓘ Lithiophilite-Triphylite Series
BeBeryllium
Beⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Beⓘ BazziteBe3Sc2(Si6O18)
Beⓘ BertranditeBe4(Si2O7)(OH)2
Beⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Beⓘ BerylBe3Al2(Si6O18)
Beⓘ ChrysoberylBeAl2O4
Beⓘ EuclaseBeAl(SiO4)(OH)
Beⓘ HelvineBe3Mn42+(SiO4)3S
Beⓘ HerderiteCaBe(PO4)F
Beⓘ HydroxylherderiteCaBe(PO4)(OH)
Beⓘ MoraesiteBe2(PO4)(OH) · 4H2O
Beⓘ Beryl var. MorganiteBe3Al2(Si6O18)
Beⓘ PhenakiteBe2SiO4
Beⓘ RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Beⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Beⓘ Beryl var. GosheniteBe3Al2(Si6O18)
BBoron
Bⓘ Tourmaline var. Achroite
Bⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ DatoliteCaB(SiO4)(OH)
Bⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Bⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ Tourmaline var. Indicolite
Bⓘ Tourmaline var. Rubellite
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Bⓘ Fluor-uvite-Uvite Series
Bⓘ Tourmaline var. Verdelite
Bⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ Bastnäsite-(Ce)Ce(CO3)F
Cⓘ BeyeriteCa(BiO)2(CO3)2
Cⓘ Bismutite(BiO)2CO3
Cⓘ CalciteCaCO3
Cⓘ CerussitePbCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ GraphiteC
Cⓘ HydrozinciteZn5(CO3)2(OH)6
Cⓘ KutnohoriteCaMn2+(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ MeioniteCa4Al6Si6O24CO3
Cⓘ RhodochrositeMnCO3
Cⓘ SideriteFeCO3
Cⓘ SmithsoniteZnCO3
Cⓘ SpurriteCa5(SiO4)2(CO3)
Cⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Cⓘ LanthaniteREE23+(CO3)3 · 8H2O
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Oⓘ Microcline var. AmazoniteK(AlSi3O8)
Oⓘ AmblygoniteLiAl(PO4)F
Oⓘ Quartz var. AmethystSiO2
Oⓘ Amphibole SupergroupAB2C5(T8O22)W2
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AnataseTiO2
Oⓘ AnglesitePbSO4
Oⓘ AnhydriteCaSO4
Oⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Oⓘ AnniteKFe32+(AlSi3O10)(OH)2
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ Anthophyllite◻Mg2Mg5(Si8O22)(OH)2
Oⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Oⓘ ArsenoliteAs2O3
Oⓘ AragoniteCaCO3
Oⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Oⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ AugeliteAl2(PO4)(OH)3
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ Tourmaline var. Achroite
Oⓘ BabingtoniteCa2Fe2+Fe3+Si5O14(OH)
Oⓘ BaryteBaSO4
Oⓘ Bastnäsite-(Ce)Ce(CO3)F
Oⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Oⓘ BazziteBe3Sc2(Si6O18)
Oⓘ BecquereliteCa(UO2)6O4(OH)6 · 8H2O
Oⓘ BementiteMn7Si6O15(OH)8
Oⓘ BerauniteFe63+(PO4)4O(OH)4 · 6H2O
Oⓘ BertranditeBe4(Si2O7)(OH)2
Oⓘ BeyeriteCa(BiO)2(CO3)2
Oⓘ BismutotantaliteBiTaO4
Oⓘ BismutoferriteFe23+Bi(SiO4)2(OH)
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Oⓘ BismiteBi2O3
Oⓘ Bismutite(BiO)2CO3
Oⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Oⓘ BrazilianiteNaAl3(PO4)2(OH)4
Oⓘ BustamiteCaMn2+(Si2O6)
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CalciteCaCO3
Oⓘ CaryopiliteMn32+Si2O5(OH)4
Oⓘ CassiteriteSnO2
Oⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Oⓘ CerussitePbCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ ChrysoberylBeAl2O4
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ Quartz var. CitrineSiO2
Oⓘ ClaudetiteAs2O3
Oⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oⓘ Cookeite(LiAl4◻)[AlSi3O10](OH)8
Oⓘ CordieriteMg2Al4Si5O18
Oⓘ CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Oⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Oⓘ Cummingtonite◻Mg2Mg5(Si8O22)(OH)2
Oⓘ DiadochiteFe23+(PO4)(SO4)(OH) · 6H2O
Oⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Oⓘ DickiteAl2(Si2O5)(OH)4
Oⓘ DiopsideCaMgSi2O6
Oⓘ DolomiteCaMg(CO3)2
Oⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ DatoliteCaB(SiO4)(OH)
Oⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ EnstatiteMg2Si2O6
Oⓘ EosphoriteMn2+Al(PO4)(OH)2 · H2O
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ EpsomiteMgSO4 · 7H2O
Oⓘ ErythriteCo3(AsO4)2 · 8H2O
Oⓘ EuclaseBeAl(SiO4)(OH)
Oⓘ EucryptiteLiAlSiO4
Oⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Oⓘ Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Oⓘ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Oⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Oⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Oⓘ Triphylite var. FerrisickleriteLi1-x(Fex3+Fe2+1-x)PO4
Oⓘ Hydrokenoelsmoreite var. Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
Oⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Oⓘ Columbite-(Fe)Fe2+Nb2O6
Oⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Oⓘ Tantalite-(Fe)Fe2+Ta2O6
Oⓘ Tapiolite-(Fe)Fe2+Ta2O6
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Oⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Oⓘ GahniteZnAl2O4
Oⓘ GalaxiteMn2+Al2O4
Oⓘ Gedrite◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
Oⓘ GehleniteCa2Al[AlSiO7]
Oⓘ GobbinsiteNa5(Si11Al5)O32 · 11H2O
Oⓘ GoethiteFe3+O(OH)
Oⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Oⓘ GoslariteZnSO4 · 7H2O
Oⓘ GraftoniteFe2+Fe22+(PO4)2
Oⓘ Grayite(Th,Pb,Ca)(PO4) · H2O
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ GroutiteMn3+O(OH)
Oⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Oⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Oⓘ HelvineBe3Mn42+(SiO4)3S
Oⓘ HematiteFe2O3
Oⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Oⓘ HerderiteCaBe(PO4)F
Oⓘ HeterositeFe3+(PO4)
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ HexahydriteMg(H2O)6(SO4)
Oⓘ HureauliteMn52+(PO3OH)2(PO4)2 · 4H2O
Oⓘ Opal var. Opal-ANSiO2 · nH2O
Oⓘ Microcline var. Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
Oⓘ HydroxylherderiteCaBe(PO4)(OH)
Oⓘ HydroxylapatiteCa5(PO4)3(OH)
Oⓘ HydrozinciteZn5(CO3)2(OH)6
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ Tourmaline var. Indicolite
Oⓘ IshikawaiteU4+Fe2+Nb2O8
Oⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series
Oⓘ JacobsiteMn2+Fe23+O4
Oⓘ JarositeKFe33+(SO4)2(OH)6
Oⓘ JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Oⓘ JohannseniteCaMn2+Si2O6
Oⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ Spodumene var. KunziteLiAlSi2O6
Oⓘ KutnohoriteCaMn2+(CO3)2
Oⓘ KyaniteAl2(SiO4)O
Oⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ LacroixiteNaAl(PO4)F
Oⓘ LarniteCa2SiO4
Oⓘ LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ LiandratiteU(Nb,Ta)2O8
Oⓘ LinaritePbCu(SO4)(OH)2
Oⓘ LithiophiliteLiMn2+PO4
Oⓘ LudlamiteFe32+(PO4)2 · 4H2O
Oⓘ LithargePbO
Oⓘ ManganiteMn3+O(OH)
Oⓘ Columbite-(Mn)Mn2+Nb2O6
Oⓘ Tantalite-(Mn)Mn2+Ta2O6
Oⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Oⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ Ilmenite var. Iron(III)-bearing Ilmenite(Fe2+,Fe3+)TiO3
Oⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Oⓘ MassicotPbO
Oⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Oⓘ MeioniteCa4Al6Si6O24CO3
Oⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Oⓘ MesseliteCa2Fe2+(PO4)2 · 2H2O
Oⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Oⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Oⓘ MicroclineK(AlSi3O8)
Oⓘ MimetitePb5(AsO4)3Cl
Oⓘ MiniumPb3O4
Oⓘ MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
Oⓘ Monazite GroupREE(PO4)
Oⓘ Monazite-(Ce)Ce(PO4)
Oⓘ MontebrasiteLiAl(PO4)(OH)
Oⓘ MoraesiteBe2(PO4)(OH) · 4H2O
Oⓘ Beryl var. MorganiteBe3Al2(Si6O18)
Oⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ NatrophiliteNaMn2+PO4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ OpalSiO2 · nH2O
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ PalermoiteLi2SrAl4(PO4)4(OH)4
Oⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Oⓘ ParsonsitePb2(UO2)(PO4)2
Oⓘ PetaliteLiAl(Si4O10)
Oⓘ PetscheckiteUFe(Nb,Ta)2O8
Oⓘ PhosphophylliteZn2Fe 2+(PO4)2 · 4H2O
Oⓘ PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Oⓘ PhenakiteBe2SiO4
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ PickeringiteMgAl2(SO4)4 · 22H2O
Oⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Oⓘ Pitticite(Fe, AsO4, H2O) (?)
Oⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Oⓘ PlattneritePbO2
Oⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Oⓘ PowelliteCa(MoO4)
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Oⓘ PurpuriteMn3+(PO4)
Oⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Oⓘ PyrolusiteMn4+O2
Oⓘ PyromorphitePb5(PO4)3Cl
Oⓘ PyrophaniteMn2+TiO3
Oⓘ PyrophylliteAl2Si4O10(OH)2
Oⓘ PyroxmangiteMn2+SiO3
Oⓘ QuartzSiO2
Oⓘ Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
Oⓘ RhodochrositeMnCO3
Oⓘ RhodoniteCaMn3Mn[Si5O15]
Oⓘ Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5
Oⓘ RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Oⓘ Quartz var. Rose QuartzSiO2
Oⓘ Tourmaline var. Rubellite
Oⓘ RutileTiO2
Oⓘ Samarskite-(Y)YFe3+Nb2O8
Oⓘ ScheeliteCa(WO4)
Oⓘ Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ ScoroditeFe3+AsO4 · 2H2O
Oⓘ ScorzaliteFe2+Al2(PO4)2(OH)2
Oⓘ Lithiophilite var. SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Oⓘ SideriteFeCO3
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SilléniteBi12SiO20
Oⓘ SmithsoniteZnCO3
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ SpinelMgAl2O4
Oⓘ SpodumeneLiAlSi2O6
Oⓘ SpurriteCa5(SiO4)2(CO3)
Oⓘ StauroliteFe22+Al9Si4O23(OH)
Oⓘ StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Oⓘ StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
Oⓘ Rutile var. Strüverite(Ti,Ta,Fe)O2
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Oⓘ Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
Oⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Oⓘ TephroiteMn22+(SiO4)
Oⓘ ThoriteTh(SiO4)
Oⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Oⓘ Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Oⓘ TitaniteCaTiO(SiO4)
Oⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ TriphyliteLiFe2+PO4
Oⓘ TripliteMn22+(PO4)F
Oⓘ UraniniteUO2
Oⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Oⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Oⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Oⓘ Fluor-uvite-Uvite Series
Oⓘ VandendriesscheitePbU7O22 · 12H2O
Oⓘ Tourmaline var. Verdelite
Oⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Oⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Oⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oⓘ WarditeNaAl3(PO4)2(OH)4 · 2H2O
Oⓘ WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
Oⓘ WodginiteMn2+Sn4+Ta2O8
Oⓘ WulfenitePb(MoO4)
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Xenotime-(Y)Y(PO4)
Oⓘ XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
Oⓘ Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
Oⓘ Zinnwaldite
Oⓘ ZirconZr(SiO4)
Oⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oⓘ Albite var. PeristeriteNa(AlSi3O8)
Oⓘ Gypsum var. SeleniteCaSO4 · 2H2O
Oⓘ Quartz var. Rock CrystalSiO2
Oⓘ Quartz var. Milky QuartzSiO2
Oⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Oⓘ Zircon var. CalyptoliteZr(SiO4)
Oⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite(Nb,W,Ta,Fe,Mn)2O4
Oⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Oⓘ Beryl var. GosheniteBe3Al2(Si6O18)
Oⓘ Albite var. CleavelanditeNa(AlSi3O8)
Oⓘ Almandine-Spessartine Series
Oⓘ Fayalite-Forsterite Series
Oⓘ Columbite-(Fe)-Columbite-(Mn) Series
Oⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Oⓘ LanthaniteREE23+(CO3)3 · 8H2O
Oⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Oⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
Oⓘ Quartz var. Blue QuartzSiO2
Oⓘ Quartz var. Ferruginous QuartzSiO2
Oⓘ Hydrokenoelsmoreite◻2W2O6(H2O)
Oⓘ ApatiteCa5(PO4)3A
Oⓘ Lithiophilite-Triphylite Series
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Oⓘ FerroberauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
FFluorine
Fⓘ AmblygoniteLiAl(PO4)F
Fⓘ Bastnäsite-(Ce)Ce(CO3)F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Fluorite var. ChlorophaneCaF2
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Fⓘ FluoriteCaF2
Fⓘ HerderiteCaBe(PO4)F
Fⓘ LacroixiteNaAl(PO4)F
Fⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Fⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Fⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Fⓘ TopazAl2(SiO4)(F,OH)2
Fⓘ TripliteMn22+(PO4)F
Fⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Fⓘ Fluor-uvite-Uvite Series
Fⓘ Zinnwaldite
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Naⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Naⓘ BrazilianiteNaAl3(PO4)2(OH)4
Naⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Naⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ GobbinsiteNa5(Si11Al5)O32 · 11H2O
Naⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Naⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Naⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Naⓘ LacroixiteNaAl(PO4)F
Naⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Naⓘ NatrophiliteNaMn2+PO4
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Naⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ SodaliteNa4(Si3Al3)O12Cl
Naⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Naⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Naⓘ WarditeNaAl3(PO4)2(OH)4 · 2H2O
Naⓘ Albite var. PeristeriteNa(AlSi3O8)
Naⓘ Albite var. CleavelanditeNa(AlSi3O8)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Naⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Naⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Naⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Naⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Anthophyllite◻Mg2Mg5(Si8O22)(OH)2
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ CordieriteMg2Al4Si5O18
Mgⓘ Cummingtonite◻Mg2Mg5(Si8O22)(OH)2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ EpsomiteMgSO4 · 7H2O
Mgⓘ Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Mgⓘ Gedrite◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
Mgⓘ HexahydriteMg(H2O)6(SO4)
Mgⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Mgⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ PickeringiteMgAl2(SO4)4 · 22H2O
Mgⓘ SpinelMgAl2O4
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Fluor-uvite-Uvite Series
Mgⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Mgⓘ Fayalite-Forsterite Series
Mgⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Mgⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Mgⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Mgⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alⓘ Microcline var. AmazoniteK(AlSi3O8)
Alⓘ AmblygoniteLiAl(PO4)F
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ AnniteKFe32+(AlSi3O10)(OH)2
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Alⓘ AugeliteAl2(PO4)(OH)3
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Alⓘ BrazilianiteNaAl3(PO4)2(OH)4
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ ChrysoberylBeAl2O4
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alⓘ Cookeite(LiAl4◻)[AlSi3O10](OH)8
Alⓘ CordieriteMg2Al4Si5O18
Alⓘ CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Alⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Alⓘ DickiteAl2(Si2O5)(OH)4
Alⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ EosphoriteMn2+Al(PO4)(OH)2 · H2O
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ EuclaseBeAl(SiO4)(OH)
Alⓘ EucryptiteLiAlSiO4
Alⓘ Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Alⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Alⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Alⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ GahniteZnAl2O4
Alⓘ GalaxiteMn2+Al2O4
Alⓘ Gedrite◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
Alⓘ GehleniteCa2Al[AlSiO7]
Alⓘ GobbinsiteNa5(Si11Al5)O32 · 11H2O
Alⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Alⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ Microcline var. Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ Spodumene var. KunziteLiAlSi2O6
Alⓘ KyaniteAl2(SiO4)O
Alⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Alⓘ LacroixiteNaAl(PO4)F
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Alⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Alⓘ MeioniteCa4Al6Si6O24CO3
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MontebrasiteLiAl(PO4)(OH)
Alⓘ Beryl var. MorganiteBe3Al2(Si6O18)
Alⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ PalermoiteLi2SrAl4(PO4)4(OH)4
Alⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Alⓘ PetaliteLiAl(Si4O10)
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ PickeringiteMgAl2(SO4)4 · 22H2O
Alⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Alⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Alⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Alⓘ PyrophylliteAl2Si4O10(OH)2
Alⓘ Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ ScorzaliteFe2+Al2(PO4)2(OH)2
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SodaliteNa4(Si3Al3)O12Cl
Alⓘ SpessartineMn32+Al2(SiO4)3
Alⓘ SpinelMgAl2O4
Alⓘ SpodumeneLiAlSi2O6
Alⓘ StauroliteFe22+Al9Si4O23(OH)
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Alⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Alⓘ Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Alⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Alⓘ TopazAl2(SiO4)(F,OH)2
Alⓘ Fluor-uvite-Uvite Series
Alⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Alⓘ WarditeNaAl3(PO4)2(OH)4 · 2H2O
Alⓘ Zinnwaldite
Alⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alⓘ Albite var. PeristeriteNa(AlSi3O8)
Alⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Alⓘ Beryl var. GosheniteBe3Al2(Si6O18)
Alⓘ Albite var. CleavelanditeNa(AlSi3O8)
Alⓘ Almandine-Spessartine Series
Alⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Alⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Alⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Siⓘ Microcline var. AmazoniteK(AlSi3O8)
Siⓘ Quartz var. AmethystSiO2
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ AnniteKFe32+(AlSi3O10)(OH)2
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Anthophyllite◻Mg2Mg5(Si8O22)(OH)2
Siⓘ Apophyllite GroupAB4[Si8O20]X · 8H2O
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ BabingtoniteCa2Fe2+Fe3+Si5O14(OH)
Siⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Siⓘ BazziteBe3Sc2(Si6O18)
Siⓘ BementiteMn7Si6O15(OH)8
Siⓘ BertranditeBe4(Si2O7)(OH)2
Siⓘ BismutoferriteFe23+Bi(SiO4)2(OH)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Siⓘ BustamiteCaMn2+(Si2O6)
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ CaryopiliteMn32+Si2O5(OH)4
Siⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ Quartz var. CitrineSiO2
Siⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siⓘ Cookeite(LiAl4◻)[AlSi3O10](OH)8
Siⓘ CordieriteMg2Al4Si5O18
Siⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Siⓘ Cummingtonite◻Mg2Mg5(Si8O22)(OH)2
Siⓘ DickiteAl2(Si2O5)(OH)4
Siⓘ DiopsideCaMgSi2O6
Siⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ DatoliteCaB(SiO4)(OH)
Siⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ EnstatiteMg2Si2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ EuclaseBeAl(SiO4)(OH)
Siⓘ EucryptiteLiAlSiO4
Siⓘ Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Siⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Siⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Siⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Siⓘ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Siⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Gedrite◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2
Siⓘ GehleniteCa2Al[AlSiO7]
Siⓘ GobbinsiteNa5(Si11Al5)O32 · 11H2O
Siⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Siⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Siⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Siⓘ HelvineBe3Mn42+(SiO4)3S
Siⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ Opal var. Opal-ANSiO2 · nH2O
Siⓘ Microcline var. Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ JohannseniteCaMn2+Si2O6
Siⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ Spodumene var. KunziteLiAlSi2O6
Siⓘ KyaniteAl2(SiO4)O
Siⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Siⓘ LarniteCa2SiO4
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Siⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Siⓘ MeioniteCa4Al6Si6O24CO3
Siⓘ MicroclineK(AlSi3O8)
Siⓘ Beryl var. MorganiteBe3Al2(Si6O18)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ OpalSiO2 · nH2O
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ ParagoniteNaAl2(AlSi3O10)(OH)2
Siⓘ PetaliteLiAl(Si4O10)
Siⓘ PhenakiteBe2SiO4
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Siⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Siⓘ PyrophylliteAl2Si4O10(OH)2
Siⓘ PyroxmangiteMn2+SiO3
Siⓘ QuartzSiO2
Siⓘ RhodoniteCaMn3Mn[Si5O15]
Siⓘ Quartz var. Rose QuartzSiO2
Siⓘ Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ SilléniteBi12SiO20
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ SpodumeneLiAlSi2O6
Siⓘ SpurriteCa5(SiO4)2(CO3)
Siⓘ StauroliteFe22+Al9Si4O23(OH)
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ TephroiteMn22+(SiO4)
Siⓘ ThoriteTh(SiO4)
Siⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Siⓘ Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Siⓘ TitaniteCaTiO(SiO4)
Siⓘ TopazAl2(SiO4)(F,OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Siⓘ Fluor-uvite-Uvite Series
Siⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Zinnwaldite
Siⓘ ZirconZr(SiO4)
Siⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siⓘ Albite var. PeristeriteNa(AlSi3O8)
Siⓘ Quartz var. Rock CrystalSiO2
Siⓘ Quartz var. Milky QuartzSiO2
Siⓘ Beryl var. HeliodorBe3Al2(Si6O18)
Siⓘ Zircon var. CalyptoliteZr(SiO4)
Siⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Siⓘ Beryl var. GosheniteBe3Al2(Si6O18)
Siⓘ Albite var. CleavelanditeNa(AlSi3O8)
Siⓘ Almandine-Spessartine Series
Siⓘ Fayalite-Forsterite Series
Siⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O
Siⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Siⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
Siⓘ Quartz var. Blue QuartzSiO2
Siⓘ Quartz var. Ferruginous QuartzSiO2
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pⓘ AmblygoniteLiAl(PO4)F
Pⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Pⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pⓘ AugeliteAl2(PO4)(OH)3
Pⓘ BerauniteFe63+(PO4)4O(OH)4 · 6H2O
Pⓘ BrazilianiteNaAl3(PO4)2(OH)4
Pⓘ CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Pⓘ DiadochiteFe23+(PO4)(SO4)(OH) · 6H2O
Pⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Pⓘ EosphoriteMn2+Al(PO4)(OH)2 · H2O
Pⓘ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Pⓘ Triphylite var. FerrisickleriteLi1-x(Fex3+Fe2+1-x)PO4
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ GraftoniteFe2+Fe22+(PO4)2
Pⓘ Grayite(Th,Pb,Ca)(PO4) · H2O
Pⓘ HerderiteCaBe(PO4)F
Pⓘ HeterositeFe3+(PO4)
Pⓘ HureauliteMn52+(PO3OH)2(PO4)2 · 4H2O
Pⓘ HydroxylherderiteCaBe(PO4)(OH)
Pⓘ HydroxylapatiteCa5(PO4)3(OH)
Pⓘ LacroixiteNaAl(PO4)F
Pⓘ LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Pⓘ LithiophiliteLiMn2+PO4
Pⓘ LudlamiteFe32+(PO4)2 · 4H2O
Pⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Pⓘ MesseliteCa2Fe2+(PO4)2 · 2H2O
Pⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Pⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Pⓘ MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
Pⓘ Monazite GroupREE(PO4)
Pⓘ Monazite-(Ce)Ce(PO4)
Pⓘ MontebrasiteLiAl(PO4)(OH)
Pⓘ MoraesiteBe2(PO4)(OH) · 4H2O
Pⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Pⓘ NatrophiliteNaMn2+PO4
Pⓘ PalermoiteLi2SrAl4(PO4)4(OH)4
Pⓘ ParsonsitePb2(UO2)(PO4)2
Pⓘ PhosphophylliteZn2Fe 2+(PO4)2 · 4H2O
Pⓘ PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Pⓘ PlaneriteAl6(PO4)2(PO3OH)2(OH)8 · 4H2O
Pⓘ PurpuriteMn3+(PO4)
Pⓘ PyromorphitePb5(PO4)3Cl
Pⓘ Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
Pⓘ Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5
Pⓘ RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Pⓘ ScorzaliteFe2+Al2(PO4)2(OH)2
Pⓘ Lithiophilite var. SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Pⓘ StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Pⓘ StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
Pⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Pⓘ TriphyliteLiFe2+PO4
Pⓘ TripliteMn22+(PO4)F
Pⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Pⓘ WarditeNaAl3(PO4)2(OH)4 · 2H2O
Pⓘ WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
Pⓘ Xenotime-(Y)Y(PO4)
Pⓘ XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
Pⓘ ApatiteCa5(PO4)3A
Pⓘ Lithiophilite-Triphylite Series
Pⓘ FerroberauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ AnglesitePbSO4
Sⓘ AnhydriteCaSO4
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ BismuthiniteBi2S3
Sⓘ ChalcopyriteCuFeS2
Sⓘ CobaltiteCoAsS
Sⓘ CovelliteCuS
Sⓘ CuprobismutiteCu8AgBi13S24
Sⓘ DiadochiteFe23+(PO4)(SO4)(OH) · 6H2O
Sⓘ EpsomiteMgSO4 · 7H2O
Sⓘ GalenaPbS
Sⓘ GersdorffiteNiAsS
Sⓘ GoslariteZnSO4 · 7H2O
Sⓘ GreenockiteCdS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ HelvineBe3Mn42+(SiO4)3S
Sⓘ HexahydriteMg(H2O)6(SO4)
Sⓘ JarositeKFe33+(SO4)2(OH)6
Sⓘ JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Sⓘ LinaritePbCu(SO4)(OH)2
Sⓘ MarcasiteFeS2
Sⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Sⓘ MolybdeniteMoS2
Sⓘ PickeringiteMgAl2(SO4)4 · 22H2O
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ RealgarAs4S4
Sⓘ SphaleriteZnS
Sⓘ Native SulphurS8
Sⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Sⓘ Wurtzite(Zn,Fe)S
Sⓘ Gypsum var. SeleniteCaSO4 · 2H2O
Sⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
ClChlorine
Clⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Clⓘ MimetitePb5(AsO4)3Cl
Clⓘ PyromorphitePb5(PO4)3Cl
Clⓘ SodaliteNa4(Si3Al3)O12Cl
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ Microcline var. AmazoniteK(AlSi3O8)
Kⓘ AnniteKFe32+(AlSi3O10)(OH)2
Kⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Kⓘ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Kⓘ Microcline var. Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ JarositeKFe33+(SO4)2(OH)6
Kⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Kⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Kⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Kⓘ Zinnwaldite
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caⓘ AnhydriteCaSO4
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ AragoniteCaCO3
Caⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Caⓘ BabingtoniteCa2Fe2+Fe3+Si5O14(OH)
Caⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Caⓘ BecquereliteCa(UO2)6O4(OH)6 · 8H2O
Caⓘ BeyeriteCa(BiO)2(CO3)2
Caⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Caⓘ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Caⓘ BustamiteCaMn2+(Si2O6)
Caⓘ CalciteCaCO3
Caⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Caⓘ Fluorite var. ChlorophaneCaF2
Caⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caⓘ CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Caⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Caⓘ DiopsideCaMgSi2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ DatoliteCaB(SiO4)(OH)
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Caⓘ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Caⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Caⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Caⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
Caⓘ FluoriteCaF2
Caⓘ GehleniteCa2Al[AlSiO7]
Caⓘ Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Caⓘ Grayite(Th,Pb,Ca)(PO4) · H2O
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Caⓘ HerderiteCaBe(PO4)F
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ HydroxylherderiteCaBe(PO4)(OH)
Caⓘ HydroxylapatiteCa5(PO4)3(OH)
Caⓘ JohannseniteCaMn2+Si2O6
Caⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Caⓘ KutnohoriteCaMn2+(CO3)2
Caⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Caⓘ LarniteCa2SiO4
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2
Caⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Caⓘ MeioniteCa4Al6Si6O24CO3
Caⓘ MesseliteCa2Fe2+(PO4)2 · 2H2O
Caⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Caⓘ MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
Caⓘ MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Caⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Caⓘ PowelliteCa(MoO4)
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Caⓘ RhodoniteCaMn3Mn[Si5O15]
Caⓘ RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Caⓘ ScheeliteCa(WO4)
Caⓘ SpurriteCa5(SiO4)2(CO3)
Caⓘ Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Caⓘ TitaniteCaTiO(SiO4)
Caⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Caⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Caⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Caⓘ Fluor-uvite-Uvite Series
Caⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
Caⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caⓘ Gypsum var. SeleniteCaSO4 · 2H2O
Caⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Caⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Caⓘ ApatiteCa5(PO4)3A
ScScandium
Scⓘ BazziteBe3Sc2(Si6O18)
TiTitanium
Tiⓘ AnataseTiO2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Tiⓘ Ilmenite var. Iron(III)-bearing Ilmenite(Fe2+,Fe3+)TiO3
Tiⓘ PyrophaniteMn2+TiO3
Tiⓘ RutileTiO2
Tiⓘ Rutile var. Strüverite(Ti,Ta,Fe)O2
Tiⓘ Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
Tiⓘ TitaniteCaTiO(SiO4)
Tiⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Tiⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Tiⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
MnManganese
Mnⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Mnⓘ BementiteMn7Si6O15(OH)8
Mnⓘ Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Mnⓘ BustamiteCaMn2+(Si2O6)
Mnⓘ CaryopiliteMn32+Si2O5(OH)4
Mnⓘ Dickinsonite-(KMnNa)(KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2
Mnⓘ EosphoriteMn2+Al(PO4)(OH)2 · H2O
Mnⓘ FairfielditeCa2Mn2+(PO4)2 · 2H2O
Mnⓘ GalaxiteMn2+Al2O4
Mnⓘ GroutiteMn3+O(OH)
Mnⓘ HelvineBe3Mn42+(SiO4)3S
Mnⓘ HureauliteMn52+(PO3OH)2(PO4)2 · 4H2O
Mnⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series
Mnⓘ JacobsiteMn2+Fe23+O4
Mnⓘ JohannseniteCaMn2+Si2O6
Mnⓘ KutnohoriteCaMn2+(CO3)2
Mnⓘ LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Mnⓘ LithiophiliteLiMn2+PO4
Mnⓘ ManganiteMn3+O(OH)
Mnⓘ Columbite-(Mn)Mn2+Nb2O6
Mnⓘ Tantalite-(Mn)Mn2+Ta2O6
Mnⓘ Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Mnⓘ MasutomiliteK(LiAlMn2+)[AlSi3O10]F2
Mnⓘ NatrophiliteNaMn2+PO4
Mnⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Mnⓘ PurpuriteMn3+(PO4)
Mnⓘ PyrolusiteMn4+O2
Mnⓘ PyrophaniteMn2+TiO3
Mnⓘ PyroxmangiteMn2+SiO3
Mnⓘ Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
Mnⓘ RhodochrositeMnCO3
Mnⓘ RhodoniteCaMn3Mn[Si5O15]
Mnⓘ RoscheriteCa2Mn52+Be4(PO4)6(OH)4 · 6H2O
Mnⓘ Lithiophilite var. SickleriteLi1-x(Mnx3+Mn2+1-x)PO4
Mnⓘ SpessartineMn32+Al2(SiO4)3
Mnⓘ StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Mnⓘ StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
Mnⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Mnⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Mnⓘ TephroiteMn22+(SiO4)
Mnⓘ Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Mnⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mnⓘ TripliteMn22+(PO4)F
Mnⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Mnⓘ WodginiteMn2+Sn4+Ta2O8
Mnⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite(Nb,W,Ta,Fe,Mn)2O4
Mnⓘ Almandine-Spessartine Series
Mnⓘ Columbite-(Fe)-Columbite-(Mn) Series
Mnⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
Mnⓘ Lithiophilite-Triphylite Series
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feⓘ AnniteKFe32+(AlSi3O10)(OH)2
Feⓘ ArsenopyriteFeAsS
Feⓘ Arrojadite-(KFe)(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ BabingtoniteCa2Fe2+Fe3+Si5O14(OH)
Feⓘ BerauniteFe63+(PO4)4O(OH)4 · 6H2O
Feⓘ BismutoferriteFe23+Bi(SiO4)2(OH)
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Feⓘ DiadochiteFe23+(PO4)(SO4)(OH) · 6H2O
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Fahlunite(Mg,Fe)Al2Si3O10 · 2H2O
Feⓘ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Feⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Feⓘ Triphylite var. FerrisickleriteLi1-x(Fex3+Fe2+1-x)PO4
Feⓘ Hydrokenoelsmoreite var. Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
Feⓘ Ferro-actinolite◻Ca2Fe52+(Si8O22)(OH)2
Feⓘ Columbite-(Fe)Fe2+Nb2O6
Feⓘ Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Feⓘ Tantalite-(Fe)Fe2+Ta2O6
Feⓘ Tapiolite-(Fe)Fe2+Ta2O6
Feⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Feⓘ GoethiteFe3+O(OH)
Feⓘ GraftoniteFe2+Fe22+(PO4)2
Feⓘ Grunerite◻Fe22+Fe52+(Si8O22)(OH)2
Feⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Feⓘ HematiteFe2O3
Feⓘ HeterositeFe3+(PO4)
Feⓘ IlmeniteFe2+TiO3
Feⓘ IshikawaiteU4+Fe2+Nb2O8
Feⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series
Feⓘ JacobsiteMn2+Fe23+O4
Feⓘ JarositeKFe33+(SO4)2(OH)6
Feⓘ LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Feⓘ LöllingiteFeAs2
Feⓘ LudlamiteFe32+(PO4)2 · 4H2O
Feⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Ilmenite var. Iron(III)-bearing Ilmenite(Fe2+,Fe3+)TiO3
Feⓘ MarcasiteFeS2
Feⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Feⓘ MesseliteCa2Fe2+(PO4)2 · 2H2O
Feⓘ MitridatiteCa2Fe33+(PO4)3O2 · 3H2O
Feⓘ NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Feⓘ PetscheckiteUFe(Nb,Ta)2O8
Feⓘ PhosphophylliteZn2Fe 2+(PO4)2 · 4H2O
Feⓘ Pitticite(Fe, AsO4, H2O) (?)
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
Feⓘ Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5
Feⓘ Safflorite(Co,Ni,Fe)As2
Feⓘ Samarskite-(Y)YFe3+Nb2O8
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feⓘ ScoroditeFe3+AsO4 · 2H2O
Feⓘ ScorzaliteFe2+Al2(PO4)2(OH)2
Feⓘ SideriteFeCO3
Feⓘ StauroliteFe22+Al9Si4O23(OH)
Feⓘ StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
Feⓘ StilpnomelaneK4Fe482+[Si64Al8]O164(OH)52 · nH2O
Feⓘ StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
Feⓘ Rutile var. Strüverite(Ti,Ta,Fe)O2
Feⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Feⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Feⓘ TriphyliteLiFe2+PO4
Feⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Feⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Feⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Feⓘ WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
Feⓘ Wurtzite(Zn,Fe)S
Feⓘ XanthoxeniteCa4Fe23+(PO4)4(OH)2 · 3H2O
Feⓘ Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
Feⓘ Zinnwaldite
Feⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite(Nb,W,Ta,Fe,Mn)2O4
Feⓘ Almandine-Spessartine Series
Feⓘ Fayalite-Forsterite Series
Feⓘ Columbite-(Fe)-Columbite-(Mn) Series
Feⓘ Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Feⓘ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Feⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Feⓘ Ferri-ghoseite◻(Mn2+Na)(Mg4Fe3+)Si8O22(OH)2
Feⓘ Lithiophilite-Triphylite Series
Feⓘ FerroberauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
CoCobalt
Coⓘ CobaltiteCoAsS
Coⓘ ErythriteCo3(AsO4)2 · 8H2O
Coⓘ Safflorite(Co,Ni,Fe)As2
Coⓘ SkutteruditeCoAs3
Coⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
NiNickel
Niⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Niⓘ BreithauptiteNiSb
Niⓘ GersdorffiteNiAsS
Niⓘ NickelskutteruditeNiAs3
Niⓘ NickelineNiAs
Niⓘ RammelsbergiteNiAs2
Niⓘ Safflorite(Co,Ni,Fe)As2
CuCopper
Cuⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ CovelliteCuS
Cuⓘ CuprobismutiteCu8AgBi13S24
Cuⓘ JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Cuⓘ LinaritePbCu(SO4)(OH)2
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Cuⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
ZnZinc
Znⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Znⓘ GahniteZnAl2O4
Znⓘ GoslariteZnSO4 · 7H2O
Znⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Znⓘ HydrozinciteZn5(CO3)2(OH)6
Znⓘ PhosphophylliteZn2Fe 2+(PO4)2 · 4H2O
Znⓘ SmithsoniteZnCO3
Znⓘ SphaleriteZnS
Znⓘ Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Znⓘ Wurtzite(Zn,Fe)S
AsArsenic
Asⓘ AnnabergiteNi3(AsO4)2 · 8H2O
Asⓘ ArsenoliteAs2O3
Asⓘ ArsenopyriteFeAsS
Asⓘ ClaudetiteAs2O3
Asⓘ CobaltiteCoAsS
Asⓘ ErythriteCo3(AsO4)2 · 8H2O
Asⓘ GersdorffiteNiAsS
Asⓘ LöllingiteFeAs2
Asⓘ MimetitePb5(AsO4)3Cl
Asⓘ NickelskutteruditeNiAs3
Asⓘ NickelineNiAs
Asⓘ Pitticite(Fe, AsO4, H2O) (?)
Asⓘ RammelsbergiteNiAs2
Asⓘ RealgarAs4S4
Asⓘ Safflorite(Co,Ni,Fe)As2
Asⓘ ScoroditeFe3+AsO4 · 2H2O
Asⓘ SkutteruditeCoAs3
Asⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
SrStrontium
Srⓘ PalermoiteLi2SrAl4(PO4)4(OH)4
Srⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
YYttrium
Yⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Yⓘ Samarskite-(Y)YFe3+Nb2O8
Yⓘ Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
Yⓘ Xenotime-(Y)Y(PO4)
Yⓘ Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
ZrZirconium
Zrⓘ ZirconZr(SiO4)
Zrⓘ Zircon var. CalyptoliteZr(SiO4)
Zrⓘ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nbⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nbⓘ Columbite-(Fe)Fe2+Nb2O6
Nbⓘ IshikawaiteU4+Fe2+Nb2O8
Nbⓘ LiandratiteU(Nb,Ta)2O8
Nbⓘ Columbite-(Mn)Mn2+Nb2O6
Nbⓘ PetscheckiteUFe(Nb,Ta)2O8
Nbⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Nbⓘ Samarskite-(Y)YFe3+Nb2O8
Nbⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Nbⓘ Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
Nbⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Nbⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Nbⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Nbⓘ Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
Nbⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite(Nb,W,Ta,Fe,Mn)2O4
Nbⓘ Columbite-(Fe)-Columbite-(Mn) Series
MoMolybdenum
Moⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Moⓘ MolybdeniteMoS2
Moⓘ PowelliteCa(MoO4)
Moⓘ WulfenitePb(MoO4)
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ CuprobismutiteCu8AgBi13S24
Agⓘ Native SilverAg
CdCadmium
Cdⓘ GreenockiteCdS
SnTin
Snⓘ CassiteriteSnO2
Snⓘ WodginiteMn2+Sn4+Ta2O8
SbAntimony
Sbⓘ BreithauptiteNiSb
CsCaesium
Csⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
BaBarium
Baⓘ BaryteBaSO4
Baⓘ Microcline var. Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
Baⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
CeCerium
Ceⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ceⓘ Bastnäsite-(Ce)Ce(CO3)F
Ceⓘ Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
Ceⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ceⓘ Monazite-(Ce)Ce(PO4)
Ceⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
TaTantalum
Taⓘ BismutotantaliteBiTaO4
Taⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Taⓘ Tantalite-(Fe)Fe2+Ta2O6
Taⓘ Tapiolite-(Fe)Fe2+Ta2O6
Taⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series
Taⓘ LiandratiteU(Nb,Ta)2O8
Taⓘ Tantalite-(Mn)Mn2+Ta2O6
Taⓘ Microlite GroupA2-mTa2X6-wZ1-n
Taⓘ PetscheckiteUFe(Nb,Ta)2O8
Taⓘ Rutile var. Strüverite(Ti,Ta,Fe)O2
Taⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Taⓘ Tanteuxenite-(Y)Y(Ta,Nb,Ti)2(O,OH)6
Taⓘ Tapiolite(Fe,Mn)(Ta,Nb)2O6
Taⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Taⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Taⓘ WodginiteMn2+Sn4+Ta2O8
Taⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite(Nb,W,Ta,Fe,Mn)2O4
WTungsten
Wⓘ Hydrokenoelsmoreite var. Ferritungstite◻2(W,Fe3+)2(O,OH)6(H2O)
Wⓘ ScheeliteCa(WO4)
Wⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite(Nb,W,Ta,Fe,Mn)2O4
Wⓘ Hydrokenoelsmoreite◻2W2O6(H2O)
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ AnglesitePbSO4
Pbⓘ CerussitePbCO3
Pbⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Pbⓘ GalenaPbS
Pbⓘ Grayite(Th,Pb,Ca)(PO4) · H2O
Pbⓘ LinaritePbCu(SO4)(OH)2
Pbⓘ LithargePbO
Pbⓘ MassicotPbO
Pbⓘ MimetitePb5(AsO4)3Cl
Pbⓘ MiniumPb3O4
Pbⓘ ParsonsitePb2(UO2)(PO4)2
Pbⓘ PlattneritePbO2
Pbⓘ PyromorphitePb5(PO4)3Cl
Pbⓘ VandendriesscheitePbU7O22 · 12H2O
Pbⓘ WulfenitePb(MoO4)
BiBismuth
Biⓘ BeyeriteCa(BiO)2(CO3)2
Biⓘ BismutotantaliteBiTaO4
Biⓘ BismutoferriteFe23+Bi(SiO4)2(OH)
Biⓘ BismiteBi2O3
Biⓘ BismuthiniteBi2S3
Biⓘ Bismutite(BiO)2CO3
Biⓘ CuprobismutiteCu8AgBi13S24
Biⓘ SilléniteBi12SiO20
ThThorium
Thⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Thⓘ Grayite(Th,Pb,Ca)(PO4) · H2O
Thⓘ ThoriteTh(SiO4)
Thⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
UUranium
Uⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Uⓘ BecquereliteCa(UO2)6O4(OH)6 · 8H2O
Uⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Uⓘ FourmarieritePb(UO2)4O3(OH)4 · 4H2O
Uⓘ IshikawaiteU4+Fe2+Nb2O8
Uⓘ JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Uⓘ LiandratiteU(Nb,Ta)2O8
Uⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Uⓘ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Uⓘ ParsonsitePb2(UO2)(PO4)2
Uⓘ PetscheckiteUFe(Nb,Ta)2O8
Uⓘ PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
Uⓘ Thorite var. Thorogummite(Th,U)(SiO4)1-x(OH)4x
Uⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Uⓘ UraniniteUO2
Uⓘ Uranmicrolite (of Hogarth 1977)(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7
Uⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Uⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Uⓘ VandendriesscheitePbU7O22 · 12H2O
Uⓘ Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8

Fossils

There are 28 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences28
Youngest Fossil Listed191 Ma (Early Jurassic)
Oldest Fossil Listed201 Ma (Early Jurassic)
Stratigraphic Units
UnitNo. OccurrencesAge
Agawam - Portland27201.3 - 190.8 Ma (Early Jurassic)
Meriden - East Berlin1201.3 - 199.3 Ma (Early Jurassic)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Theropoda
unranked clade		Animalia : Chordata : Saurischia : Theropoda201.3 - 190.8 Ma
Early Jurassic
Grallator (Anchisauripus) hitchcocki
species		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Grallator (Anchisauripus) hitchcocki201.3 - 190.8 Ma
Early Jurassic
Grallator (Eubrontes)
subgenus		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes)201.3 - 190.8 Ma
Early Jurassic
Eubrontes sillimani
species		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Eubrontes sillimani201.3 - 190.8 Ma
Early Jurassic
Anchisauripus tuberosus
species		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Anchisauripus tuberosus201.3 - 190.8 Ma
Early Jurassic
Anchisauripus exsertus
species		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Anchisauripus exsertus201.3 - 190.8 Ma
Early Jurassic
Eubrontes giganteus
species		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Eubrontes giganteus201.3 - 190.8 Ma
Early Jurassic
Grallator (Eubrontes) divaricatus
species		Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Grallator (Eubrontes) divaricatus201.3 - 190.8 Ma
Early Jurassic
Otozoum moodii
species		Animalia : Chordata : Saurischia : Otozoidae : Otozoum : Otozoum moodii201.3 - 190.8 Ma
Early Jurassic
Anomoepus scambus
species		Animalia : Chordata : Ornithischia : Moyenisauropodidae : Anomoepus : Anomoepus scambus201.3 - 190.8 Ma
Early Jurassic
Batrachopus
genus		Animalia : Chordata : Reptilia : Crocodylia : Batrachopodidae : Batrachopus201.3 - 190.8 Ma
Early Jurassic
Batrachopus deweyi
species		Animalia : Chordata : Reptilia : Eosuchia : Batrachopodidae : Batrachopus : Batrachopus deweyi201.3 - 190.8 Ma
Early Jurassic
Batrachopus gracilis
species		Animalia : Chordata : Reptilia : Crocodylia : Batrachopodidae : Batrachopus : Batrachopus gracilis201.3 - 190.8 Ma
Early Jurassic
Isocampe strata
species		Animalia : Chordata : Reptilia : Isocampe : Isocampe strata201.3 - 190.8 Ma
Early Jurassic
Hoplichnus equus
species		Animalia : Chordata : Hoplichnus : Hoplichnus equus201.3 - 190.8 Ma
Early Jurassic
Cunicularius
genus		Cunicularius201.3 - 190.8 Ma
Early Jurassic
Mormolucoides articulatus
species		Animalia : Arthropoda : Insecta : Coleoptera : Mormolucoides : Mormolucoides articulatus201.3 - 199.3 Ma
Early Jurassic
Ornithoidichnites parvulus
species		Ichnolites : Dipodichnites : Ornithoidichnites : Ornithoidichnites parvulus201.3 - 190.8 Ma
Early Jurassic
Fossil LocalitiesClick to show 5 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Middlesex_County,_Connecticut
Wikidata ID:Q54238
GeoNames ID:4838627

Localities in this Region

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