Long Hill, Trumbull, Fairfield County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Long Hill | Census-designated Place |
| Trumbull | Town |
| Fairfield County | County |
| Connecticut | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
41° 15' 56'' North , 73° 13' 27'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Trumbull | 36,018 (2017) | 3.2km |
| Easton | 7,625 (2017) | 6.3km |
| Bridgeport | 147,629 (2017) | 11.1km |
| Stratford | 51,384 (2017) | 11.8km |
| Shelton | 41,296 (2017) | 12.3km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Danbury Mineralogical Society | Danbury, Connecticut | 24km |
| New Haven Mineral Club | New Haven, Connecticut | 25km |
| Stamford Mineralogical Society | Stamford, Connecticut | 35km |
| Lapidary and Mineral Society of Central Connecticut | Meriden, Connecticut | 46km |
Long Hill is a census-designated place within the town of Trumbull. It is an old, obsolete name for the northern part of the town of Trumbull, but much old literature uses this name when mentioning the tungsten minerals, topaz, and fluorite found in and around the Old Mine Park area.
The primary tungsten mineral is scheelite, which is hosted by metasomatically altered amphibolite - shown on the state bedrock map as a portion of the basal member of The Straits Schist, but really equivalent to the Russell Mountain Formation mapped in Massachusetts. The amphibolite crops out in the Long Hill area mostly on the northeast side of State Route 25 expressway, in and around Old Mine Park. At the upper mine pit within the park, much of the scheelite was pseudomorphed into ferberite, where both were briefly mined.
Also in Long Hill, are subvertical, cross-cutting, high-teperature, hydrothermal fissure veins known mostly for their topaz and fluorite variety chlorophane. Their composition varies from nearly pure quartz; to the addition of topaz, fluorite, and muscovite (particularly along the contacts); to mostly quartz, albite, marialite, and clinochlore. They are usually less than 1 meter wide and are also found in many outcrops in and around Old Mine Park. Their full extent is uncertain, but they are the same age as the 291+/-4 million year old Pinewood Granite, which has accessory fluorite (Crowley, 1968). It is about 3 miles southeast of Old Mine Park and hosts similar, but less mineralogically diverse, muscovite-quartz veins.
Coordinates are for the Long Hill green at the intersection of Main Street (state Route 111) and Whitney Avenue.
The primary tungsten mineral is scheelite, which is hosted by metasomatically altered amphibolite - shown on the state bedrock map as a portion of the basal member of The Straits Schist, but really equivalent to the Russell Mountain Formation mapped in Massachusetts. The amphibolite crops out in the Long Hill area mostly on the northeast side of State Route 25 expressway, in and around Old Mine Park. At the upper mine pit within the park, much of the scheelite was pseudomorphed into ferberite, where both were briefly mined.
Also in Long Hill, are subvertical, cross-cutting, high-teperature, hydrothermal fissure veins known mostly for their topaz and fluorite variety chlorophane. Their composition varies from nearly pure quartz; to the addition of topaz, fluorite, and muscovite (particularly along the contacts); to mostly quartz, albite, marialite, and clinochlore. They are usually less than 1 meter wide and are also found in many outcrops in and around Old Mine Park. Their full extent is uncertain, but they are the same age as the 291+/-4 million year old Pinewood Granite, which has accessory fluorite (Crowley, 1968). It is about 3 miles southeast of Old Mine Park and hosts similar, but less mineralogically diverse, muscovite-quartz veins.
Coordinates are for the Long Hill green at the intersection of Main Street (state Route 111) and Whitney Avenue.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity 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-localities96 valid minerals. 1 (TL) - type locality of valid minerals. 7 erroneous literature entries.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Localities: Habit: semi-fibrous Colour: dark green Description: Formed from alteration of magnesio-hornblende in the amphibolite at the upper mine pit adjacent to the quartz-clinzoisite zone that hosts the ferberite after scheelite pseudomorphs. |
| ⓘ Albite Formula: Na(AlSi3O8) Localities: Corporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: blocky euhedral Colour: white, green Description: Nice white crystals along contact of quartz-fluorite veins with surrounding amphibolite. Crystals to 4-5 cm. Massive green material in the amphibolite. |
| ⓘ Albite var. Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] Localities: Habit: blocky euhedral Colour: white, green Description: Nice white crystals along contact of quartz-fluorite veins with surrounding amphibolite. Crystals to 4-5 cm. Massive green material in the amphibolite. |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 |
| ⓘ Formula: Na(AlSi2O6) · H2O Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA - erroneously reported Description: Gurlt (1894) appears to be the only one to report this mineral, which is very unlikely and never found since. Schairer (1931) included it with other minerals reported by Hobbs (1901) in a very generalized paraphrased summary taken as fact by Schooner (1961) and Januzzi (1976) but never substantiated. |
| ⓘ Anatase Formula: TiO2 Localities: Habit: tabular Colour: blue-green Description: Microcrystals assocaited with calcite and fluorite in mineralized brittle fault veins. |
| ⓘ Formula: Ca3Fe3+2(SiO4)3 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA - erroneously reported Description: Speculation by Januzzi about garnet reported in the marble by Hobbs and others. These have been shown to be grossular. |
| ⓘ Annite Formula: KFe2+3(AlSi3O10)(OH)2 Habit: anhedral flakes Colour: black Description: Occurs as a rind along the boundary of bodies of massive, albite-rich bodies formed as an alteration of the hosting amphibolite. References: |
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ Arsenopyrite Formula: FeAsS Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: massive, columnar Description: Massive material in the amphibolite. References: |
| ⓘ Augite ? Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Description: Included in a list of minerals by Januzzi with no details. |
| ⓘ Aurichalcite Formula: (Zn,Cu)5(CO3)2(OH)6 References: |
| ⓘ Axinite-(Fe) Formula: Ca2Fe2+Al2BSi4O15OH References: |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 References: |
| ⓘ Baryte Formula: BaSO4 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: blades Colour: white to gray Description: Few details provided by Januzzi and Sullivan, but a photo included in Januzzi (1994). Probably in brittle fault mineralization. |
| ⓘ Bavenite Formula: Ca4Be2Al2Si9O26(OH)2 Habit: fine needles Colour: white Description: Micro crystals lining fractures with fluorite, albite, clinchlore, gypsum. References: |
| ⓘ Bertrandite Formula: Be4(Si2O7)(OH)2 Description: Microcrystals associated with calcite and fluorite in mineralized brittle fault veins. |
| ⓘ Beryl Formula: Be3Al2(Si6O18) Localities: Colour: light green (emerald) Description: Small, but very clear light green beryl found in limestone (calcite) pods in black schist. Color possibly caused by iron(?) impurities. Dissolve the crystals out of the matrix with dilute HCl. |
| ⓘ Beryl var. Emerald Formula: Be3Al2(Si6O18) Habit: elongated prisms Colour: pale to emerald green to bluish green Description: Crystals were found at the contact zone between high-temparature hydrothermal vein of mostly calcite and host metasomatically altered amphibolite. The contact zone consists of quartz/marialite/albite/beryl/pyrrhotite. Claims have been made that this locality has had an analysis showing a chromium value, but no published analyses. Crystals vary widely in color, from pale to emerald green to bluish green (as do emerald crystals at other localities). The hydrothermal, contact zone geo-environment and assemblage is typical of many other emerald localities. |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ Bismuthinite Formula: Bi2S3 References: |
| ⓘ Bismutite Formula: (BiO)2CO3 References: |
| ⓘ Bornite Formula: Cu5FeS4 Localities: Description: Januzzi found it with native copper and other copper minerals in small quantities in the dump for the tungsten mine. |
| ⓘ Brookite Formula: TiO2 |
| ⓘ Calcite Formula: CaCO3 Localities: Habit: hexagonal prisms, trigonal tabular overgrown around a tiny central rhomb, scalenohedral, botryoidal Colour: white to creamy. pink to salmon Fluorescence: orange-red, pink Description: Many occurrences - as massive vein filling with green fluorite, clinchlore, gypsum, sulfides, beryl, phlogopite; as discrete crystals (red-orange-fluorescing) that look like little trigonal discs piled in fractures in amphibolite with pyrite and purple fluorite; as dogteeth filling little pockets in brecciated marble - these are creamy colored and fluoresce pink. Short hexagonal prisms to 1.7 cm. Very rarely found as pinkish botryoidal to 8 mm from a calcite vein associated with pyrite. Salmon-colored massive is uncommon. |
| ⓘ Chalcopyrite Formula: CuFeS2 Localities: Description: Infrequently found as massive material which is the source of secondary copper minerals. Very rare as microcrystals. |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Localities: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 road cuts, Long Hill, Trumbull, Fairfield County, Connecticut, USA Corporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: double cones applied base to base, curved to spherical aggregates of radiating plates Colour: dark green to black Description: Accessory in the marble or along contacts of cross-cutting veins with country rock, especially veins rich in calcite, albite and scapolite. In voids as micaceous aggregates up to 2 cm shaped like “double cones applied base to base” (Shepard, 1837) or generally spherical. Good albite and clinochlore crystals are found in small voids in these veins or where they formed in contact with chlorophane "in joints in marble in the bottom of the main pit, some narrow veins filled with a greenish black chlorite, which formed fine granular friable aggregates of small variously oriented crystals. Where free surfaces are present the chlorite exhibits the vermiform curved prismatic crystals commonly called helminthe forms. These free surfaces are usually coated with manganese oxide." (Shannon, 1921b). Called prochlorite in some old literature. |
| ⓘ Clinozoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Localities: State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Corporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: acicular Colour: gray-brown to green-brown Description: Acicular crystals in voids in altered amphibolite, with white scapolite. |
| ⓘ Cobaltite Formula: CoAsS Description: Microcrystals. References: |
| ⓘ Cronstedtite ? Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: rhombohedral hemimorphic, with the forms c (0001) and x (bar2021) Colour: black Description: This is all the information provided by Hoadley on the purported cronstedtite: "On a recent trip of the New York Mineralogical Club, under the guidance of the writer, to the Hubbard tungsten mine at Long Hill (Trumbull Township), Connecticut, Mr. George E. Ashby found a specimen of a chlorite, determined by Mr. Lazard Cahn as cronstedtite, 4FeO.2Fe2O3.3SiO2.4H2O. The specimen shows a group of black crystals 1/8 inch in diameter with perfect basal cleavage, hardness = 3.5, and rhombohedral
hemimorphic, with the forms c (0001) and x (bar2021). This is believed to be the first occurrence of the mineral in the United States..." Identity questioned by Manchester (1931), p. 38. Description sounds like the common clinochlore found here. |
| ⓘ Cuprite Formula: Cu2O References: |
| ⓘ Devilline Formula: CaCu4(SO4)2(OH)6 · 3H2O |
| ⓘ Diaspore Formula: AlO(OH) Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: thin or 6-sided tables flattened parallel to the shorter diagonal Colour: yellowish-white Description: First reported by Shepard (1842) as euclase forming "thin, transparent, yellowish-white tabular crystals, lining cavities in a silvery white mica, and sometimes imbedded in a dark purple fluor" in the topaz veins. Later retracted and confirmed to be diaspore by Shepard (1851) and Dana (1851): H=7-7.5, SG=3.29, alumina 84.9%, water 15.1% and described as "thin or 6-sided tables flattened parallel to the shorter diagonal". May be more common than reported because who has really looked? References: |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Dolomite Formula: CaMg(CO3)2 References: |
| ⓘ Dravite Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) References: |
| ⓘ Enstatite Formula: Mg2Si2O6 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: subhedral blocky Colour: brown-green Description: A blocky crystal in quartz/clinozoisite rock with most of the interior altered to a mass of actinolite. Pictured in Januzzi (1994) with caption that it was "x-rayed" with probable enstatite ID (not sure why he qualified it). He did not note the alteration of the crystals' interiors. |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Epsomite ? Formula: MgSO4 · 7H2O References: |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O Habit: secondary microcrystals Colour: pink Description: Secondary microcrystals associated with cobaltite microcrystals in cross-cutting calcite veins. References: |
| ⓘ Formula: BeAl(SiO4)(OH) Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA - erroneously reported Description: First reported by Shepard (1842), later retracted and confirmed to be diaspore by Shepard (1851) and Dana (1851). References: |
| ⓘ Ferberite Formula: FeWO4 Localities: Habit: pseudomorphs after bipyramidal scheelite Colour: black to dark brown Description: The only US locality for ferberite after scheelite crystals, with only about 8 other world-wide localities. First described by Silliman (1819-1822) but not recognized as pseudomorphic after scheelite for a few decades. Pseudomorph occurrence is locally restricted to the quartz/clinzoisite-rich contact between the amphibolite and marble at the upper mine pit, sometimes in small open spaces formed from the dissolution of calcite in that zone, and perhaps a nearby locality northeast of the "Burnett place" by Hobbs (1901). Occurs as anhedral lumps to euhedral crystals <1 to >10 cm, the latter size usually aggregates, in the amphibolite. Intermixed scheelite/ferberite partial replacement crystals are common. Some crystals reported with "spongy" texture, probably where tungstite formed and was weathered out. Typically called "wolframite" in most reports but Silliman's original wet chemical analysis shows it is what we now call ferberite and the use of the obsolete term "wolframite" should be abandoned. Januzzi (1994) confirms Silliman's Fe-dominant analysis: "Chemical analysis (Grand Junction Laboratory, Grand Junction, Colorado - Bauer) gave the following results: Tungsten 60.1%, Iron 17.8%, Manganese 0.21%.
Non-fibrous material yielded 16.3% iron and 0.95% manganese." |
| ⓘ Ferricopiapite ? Formula: Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Description: Details of the find needed. References: |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F |
| ⓘ Fluorite Formula: CaF2 Localities: Reported from at least 7 localities in this region. Habit: massive Colour: colorless to light smoky, rarely pale red Fluorescence: blue-green with green phosphorescence Description: As cleavable masses in the quartz-fluorite veins. Unless collected right after exposure to daylight, the fluorescence is lost. |
| ⓘ Fluorite var. Chlorophane Formula: CaF2 Localities: Corporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: massive Colour: colorless to light smoky, rarely pale red Fluorescence: blue-green with green phosphorescence Description: As cleavable masses in the quartz-fluorite veins. Unless collected right after exposure to daylight, the fluorescence is lost. |
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Description: Included in a list by Januzzi with no details, apparently based on early reports by Silliman of minerals actually from Lane's mine of Monroe. No modern data regarding the Ag content of galena from Connecticut has been published. |
| ⓘ Goethite Formula: Fe3+O(OH) Localities: Habit: botryoidal, fibrous Colour: brown Description: Botryoidal masses in open spaces of fluorite-calcite-albite-clinochlore-gypsum veins, apparently due to altered iron sulfides. |
| ⓘ Graphite Formula: C Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: massive Colour: dark gray Description: A 6.5 x 5 x 3.5 cm specimen in Ronald Januzzi's collection contains a thin irregular layer of graphite frozen in massive quartz. Slight vugginess and rounded crude quartz crystals suggests the piece came from the vuggy quartz zone on the east corner of the upper mine pit. |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 Localities: Habit: dodecahedral Colour: cinnamon to clove brown Description: Accessory in calc-silicate layers in the marble. Well-formed, gemmy crystals to 1.5 cm or so. Reported by Shannon (1921b) as "garnet" thus: "Brownish red granular garnet occurs both in the main pit and in the lime-kiln opening in nodular or lenticular masses in marble which may reach a foot in greatest diameter. Where such masses have had the surrounding calcite dissolved away small dodecahedral crystals are revealed." |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hedenbergite ? Formula: CaFe2+Si2O6 Habit: radiating clusters Colour: Greenish- Black References: |
| ⓘ Hematite Formula: Fe2O3 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Description: Minor accessory in the veins. |
| ⓘ Heulandite-Ca Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O |
| ⓘ 'Heulandite Subgroup' Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O References: |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ Hübnerite ? Formula: MnWO4 Description: Only confirmed ferberite pseudomorphs after scheelite have ever been found in the area, and only within the adjacent Old Mine Park. Analyses are needed to substantiate this mineral. References: |
| ⓘ Formula: WO3 · 2H2O Locality: Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA - erroneously reported Description: Dehydrates to tungstite, whose presence outside of neighboring Old Mine Park has not been validated. References: |
| ⓘ Hydrozincite Formula: Zn5(CO3)2(OH)6 References: |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 Localities: Habit: Coatings and crusts. Colour: shades of yellow Description: Details of the find are needed. Visually confused with tungstite. If found in the upper mine area analysis is need to show the composition. Tungstite probably has not been found here since the 19th century. |
| ⓘ 'K Feldspar' References: |
| ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 Colour: colorless, white Description: Micro crystals lining small cavities in muscovite-rich topaz vein wall zone with quartz and fluorite. References: |
| ⓘ Langite Formula: Cu4(SO4)(OH)6 · 2H2O Description: SEM-EDS showed a copper sulfate. Visual identification compared to crystal drawing #1 under Langite (Goldschmidt) on Mindat. References: |
| ⓘ Laumontite Formula: CaAl2Si4O12 · 4H2O Habit: prismatic Colour: white Description: Small prisms with stilbite in fractures. References: |
| ⓘ Lepidocrocite ? Formula: Fe3+O(OH) References: |
| ⓘ 'Limonite' |
| ⓘ Linnaeite Formula: Co2+Co3+2S4 References: |
| ⓘ Magnesio-hornblende Formula: ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 Localities: Habit: elongated prisms Colour: black to dark greenish black Description: The major component of the amphibolite in the park and adjacent areas. This is a very common species of amphibole in Connecticut based on various TEM-EDS analyses. |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Localities: Habit: powdery Colour: green Description: An occasional micromount-sized piece may be found. |
| ⓘ 'Manganese Oxides' References: |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Margarite Formula: CaAl2(Al2Si2O10)(OH)2 Localities: Habit: micaceous, fibrous, compact Colour: white, gray, pale green Description: As bands of soft but brittle parallel fibers with pearly luster surrounding and/or replacing some topaz crystals. Grading to micaceous to granular, the latter especially in the cores of altered crystals. Associated with unaltered topaz, muscovite, quartz, fluorite in cross-cutting hydrothermal veins. Confirmed using Raman spectroscopy by Paul Bartholomew, U. New Haven, 2014. |
| ⓘ 'Margarodite' Description: A supposed variety of muscovite found along the contact of cross-cutting quartz-topaz-fluorite-muscovite veins with the host amphibolite. It is an old term that has not significance and should be abandoned. References: |
| ⓘ Marialite Formula: Na4Al3Si9O24Cl Localities: Habit: radiating acicular Colour: white, pale to dark green Fluorescence: pink to lavender Description: As large radiating acicular masses in the amphibolite associated with microcline, oligoclase, quartz, sulfides and clinochlore. Also along contact zones of the amphibolite with the cross-cutting quartz-topaz-fluorite-muscovite veins associated with phlogopite and beryl. |
| ⓘ Melanterite Formula: Fe2+(H2O)6(SO4) · H2O |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Milarite Formula: K(◻H2O)Ca2(Be2Al)[Si12O30] |
| ⓘ Molybdenite Formula: MoS2 Habit: subhedral hexagonal plates Description: Subhedral 2 cm crystal in quartz hosted by amphibolite. References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Localities: Reported from at least 6 localities in this region. Habit: micaceous Colour: silvery Description: Lining the contact of hydrothermal veins, and in joints. |
| ⓘ Native Bismuth Formula: Bi Localities: Description: Januzzi reports it from the quartz-rich contact of the amphibolite with the marble at the tungsten mine. |
| ⓘ Native Copper Formula: Cu Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: thin lenses, masses, arborescent Colour: copper Description: From Januzzi (1994): "Native copper was originally found by the author at the upper working of the old tungsten mine where it occurs in exceedingly thin lenses and masses, at times distinctly arborescent in habit. Further research indicates that a series of copper minerals occur, in small amounts, as a component of the tailings, these species include: native copper, malachite, cuprite, chalcopyrite, bornite, chalcocite(?), and covellite(?). The latter two species have been reported but not confirmed. Native copper has been observed as inclusions in massive, iron stained, quartz. The most interesting occurrence takes the form of dendritic overgrowths on crystal faces of wolframite pseudomorphs after scheelite. This native element has also been observed in a matrix containing quartz, clinozoisite, pyrrhotite, and limonite." A photo is included in this reference. |
| ⓘ Native Gold ? Formula: Au Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Description: Included in a list by Januzzi with no details. |
| ⓘ Formula: Ag Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA - erroneously reported Description: Included in lists by Januzzi, but without details and never substantiated. Confusion with purported silver or silver minerals at Lane's mine in Monroe, which was confused with this locality in very early reports. |
| ⓘ Native Sulphur Formula: S8 References: |
| ⓘ Opal Formula: SiO2 · nH2O Localities: Description: Included in a list of minerals by Januzzi, details lacking but plausible as it is very common in Connecticut. |
| ⓘ Opal var. Opal-AN Formula: SiO2 · nH2O Localities: Description: Hyalite variety. Fluoresces green. |
| ⓘ Pargasite ? Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Colour: bright green Description: Included in lists, with no details. Probably confusion with diopside. References: |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Localities: Habit: subhedral tabular, granular. euhedral tabular to barrel-shaped Colour: dark brown Description: Found along the contact of cross-cutting hydrothermal calcite veins with the host amphibolite, crystals to 0.5 cm in the calcite, grading to fine-grained in the metasomatized adjacent amphibolite. Associated with scapolite, quartz, clinochlore, sulfides, rarely beryl, fluorite. Rare nice euhedral crystals to 1.5 cm. Rare euhedral microcrystals on albite found as barrel-shaped prisms with hexagonal cross-section, or tabular with a pseudohexagonal shape. |
| ⓘ Pickeringite Formula: MgAl2(SO4)4 · 22H2O |
| ⓘ 'Pinite' Habit: prismatic Colour: pale green Description: Muscovite pseudomorphs after marialite References: Busha, David L. (2023) Personal Communication. Identified by David L. Busha: Visual Identification |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 Habit: Orthorhombic crystals, thick to thin tabular, striated. Also fanlike aggregates. References: |
| ⓘ Pyrite Formula: FeS2 Localities: State Route 111 road cuts, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Corporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA |
| ⓘ Formula: Mn4+O2 Localities: Description: A black earthy mineral which has never been submitted for technical identification. |
| ⓘ Pyrrhotite Formula: Fe1-xS Localities: Habit: massive. hexagonal microcrystals Colour: reddish bronze Description: An accessory in the calcite veins and amphibolite. Microcrystals in cavities in calcite veins. |
| ⓘ Quartz Formula: SiO2 Localities: Reported from at least 7 localities in this region. |
| ⓘ Quartz var. Rutilated Quartz Formula: SiO2 References: |
| ⓘ Rosasite Formula: (Cu,Zn)2(CO3)(OH)2 References: |
| ⓘ Rozenite Formula: FeSO4 · 4H2O References: |
| ⓘ Rutile Formula: TiO2 |
| ⓘ 'Scapolite' Localities: Habit: radiating acicular Colour: white, pale to dark green Description: A large amount of material was found by Mike Otto in 2010. It was originally thought to be Tremolite but testing of a piece of material collected by David Bernstein ( Testing- Bart Cannon) revealed it to be Scapolite |
| ⓘ Scheelite Formula: Ca(WO4) Localities: Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 road cuts, Long Hill, Trumbull, Fairfield County, Connecticut, USA State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA Corporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA Colour: White to Honey Yellow Fluorescence: Light Blue Description: Excellent crystals of this scheelite are well-known among New England collectors. Primary Tungsten-bearing mineral from the locality. Occasionally, one may find a Wolframite after Scheelite crystal. |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Smithsonite Formula: ZnCO3 References: |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Stilbite-Ca Formula: NaCa4(Si27Al9)O72 · 28H2O Habit: radiating aggregates Colour: tan Description: Small aggregates with laumontite in fractures. |
| ⓘ Szomolnokite ? Formula: FeSO4 · H2O Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Description: Januzzi includes it in a list with this footnote: "Recent (1994) confirmation of the following mineral species, either by x-ray and or chemical analyses." |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 Localities: Description: A minor accessory. |
| ⓘ Titanite Formula: CaTiO(SiO4) |
| ⓘ Topaz Formula: Al2(SiO4)(F,OH)2 Localities: Reported from at least 7 localities in this region. Habit: prismatic with square to rhombic section Colour: colorless, white, grey, green, yellow-brown, blue Description: A common, but locally variable component of the cross-cutting veins with quartz, fluorite, and muscovite, the latter commonly coating the crystals, even replacing them. Rarely gemmy. Crystals usually anhedral to subhedral prisms rarely terminated, up to 6 to 8 inches in diameter, with a length of 3 to 7 inches; micro crystals can be found that are transparent and show a great perfection of form and beauty. "Topaz is present in the quartz veins in quite unusual amount. The best locality is that described as the Limekiln Vein. This vein, which has been opened for a distance of some 75 feet, is from 1 to 5 feet wide. The vein originally consisted almost entirely of quartz and topaz, the quartz being considerably more abundant than the topaz...The topaz occurs in coarse crystalline masses of gray to pale yellow or white color, with well-defined cleavage, some of the cleavage surfaces being a foot in diameter. Most of the topaz contains veins and disseminated scales of margarodite, and large masses of margarodite contain cores of corroded and embayed topaz. Where the topaz abuts against small open cavities in the center of the vein it is bounded by rough crystal planes. Many of these cavities have been filled with coarse foliated margarodite not derived from the adjacent topaz crystals, as the surfaces of these crystals corroded." (Shannon, 1921b) |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ Tungstenite ? Formula: WS2 Localities: Colour: Dark-Metallic Description: Very rare microcrystals possibly of this mineral occasionally found in marble. Analyses needed.
This ID is very doubtful given that the only report of tungstenite (a rare alteration of scheelite or ferberite) from the adjacent Old Mine Park by Schairer (1931) (a summary of other information) is almost certainly a misspelling of tungstite. The scheelite (or ferberite) is restricted to the amphibolite and does not occur in the marble. These could be primary ferberite micro-crystals (see photos). |
| ⓘ Tungstite (TL) Formula: WO3 · H2O Localities: Type Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: massive Colour: orange-yellow, chrome yellow, yellowish gray Description: An alteration of ferberite pseudomorphs after sheelite, coating and occupying cavities in these crystals from the upper mine pit. Looks like "broken sulfur". Very little of this material has been found since the mid-19th century as the highly weathered portion of the outcrop worked then by Charles Lane has long been removed by subsequent mining. Originally and incorrectly attributed to Lane's mine in Monroe, neither ferberite pseudomorphs after scheelite, nor scheelite occur there and so the type locality for this mineral is actually here. |
| ⓘ Uraninite Formula: UO2 Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: cubo-octahedral Colour: black Description: Januzzi (1994): "This micro-uraninite crystal (B14) was found embedded in dark purple fluorite occurring in the country rock zone (pegmatite) at the upper working of the old tungsten mine at Trumbull." Photos included in the reference. |
| ✪ 'Wolframite Group' Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA Habit: bipyramidal pseudomorphs after scheelite Colour: dark brown to black Description: Actually long known to be the iron-rich end-member species ferberite. The use of the term "wolframite" for crystals from here should be abandoned. See more description under ferberite. |
| ⓘ Zircon Formula: Zr(SiO4) References: |
| ⓘ Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Locality: Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA - erroneously reported Description: The "epidote" and "zoisite" in the amphibolite and its quartz-rich contact with the marble mentioned in many reports is actually clinozoisite. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Gold ? | 1.AA.05 | Au |
| ⓘ | Native Silver ? | 1.AA.05 | Ag |
| ⓘ | Native Bismuth | 1.CA.05 | Bi |
| ⓘ | Graphite | 1.CB.05a | C |
| ⓘ | Native Sulphur | 1.CC.05 | S8 |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| ⓘ | Linnaeite | 2.DA.05 | Co2+Co3+2S4 |
| ⓘ | Bismuthinite | 2.DB.05 | Bi2S3 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Tungstenite ? | 2.EA.30 | WS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| Group 3 - Halides | |||
| ⓘ | Fluorite var. Chlorophane | 3.AB.25 | CaF2 |
| ⓘ | 3.AB.25 | CaF2 | |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Rutilated Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal var. Opal-AN | 4.DA.10 | SiO2 · nH2O |
| ⓘ | 4.DA.10 | SiO2 · nH2O | |
| ⓘ | Pyrolusite ? | 4.DB.05 | Mn4+O2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Ferberite | 4.DB.30 | FeWO4 |
| ⓘ | Hübnerite ? | 4.DB.30 | MnWO4 |
| ⓘ | 'Wolframite Group' | 4.DB.30 va | |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| ⓘ | Brookite | 4.DD.10 | TiO2 |
| ⓘ | Uraninite | 4.DL.05 | UO2 |
| ⓘ | Diaspore | 4.FD.10 | AlO(OH) |
| ⓘ | Lepidocrocite ? | 4.FE.15 | Fe3+O(OH) |
| ⓘ | Tungstite (TL) | 4.FJ.10 | WO3 · H2O |
| ⓘ | Hydrotungstite ? | 4.FJ.15 | WO3 · 2H2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Smithsonite | 5.AB.05 | ZnCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Rosasite | 5.BA.10 | (Cu,Zn)2(CO3)(OH)2 |
| ⓘ | Aurichalcite | 5.BA.15 | (Zn,Cu)5(CO3)2(OH)6 |
| ⓘ | Hydrozincite | 5.BA.15 | Zn5(CO3)2(OH)6 |
| ⓘ | Bismutite | 5.BE.25 | (BiO)2CO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Szomolnokite ? | 7.CB.05 | FeSO4 · H2O |
| ⓘ | Rozenite | 7.CB.15 | FeSO4 · 4H2O |
| ⓘ | Melanterite | 7.CB.35 | Fe2+(H2O)6(SO4) · H2O |
| ⓘ | Epsomite ? | 7.CB.40 | MgSO4 · 7H2O |
| ⓘ | Pickeringite | 7.CB.85 | MgAl2(SO4)4 · 22H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Ferricopiapite ? | 7.DB.35 | Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O |
| ⓘ | Langite | 7.DD.10 | Cu4(SO4)(OH)6 · 2H2O |
| ⓘ | Devilline | 7.DD.30 | CaCu4(SO4)2(OH)6 · 3H2O |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| ⓘ | Erythrite | 8.CE.40 | Co3(AsO4)2 · 8H2O |
| Group 9 - Silicates | |||
| ⓘ | Andradite ? | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Euclase ? | 9.AE.10 | BeAl(SiO4)(OH) |
| ⓘ | Topaz | 9.AF.35 | Al2(SiO4)(F,OH)2 |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
| ⓘ | Axinite-(Fe) | 9.BD.20 | Ca2Fe2+Al2BSi4O15OH |
| ⓘ | Clinozoisite | 9.BG.05a | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Zoisite ? | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | var. Emerald | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Dravite | 9.CK.05 | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Milarite | 9.CM.05 | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | Augite ? | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Hedenbergite ? | 9.DA.15 | CaFe2+Si2O6 |
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Magnesio-hornblende | 9.DE.10 | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| ⓘ | Tremolite | 9.DE.10 | ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ | Pargasite ? | 9.DE.15 | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| ⓘ | Bavenite | 9.DF.25 | Ca4Be2Al2Si9O26(OH)2 |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Annite | 9.EC.20 | KFe2+3(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Margarite | 9.EC.30 | CaAl2(Al2Si2O10)(OH)2 |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Cronstedtite ? | 9.ED.15 | Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Oligoclase | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| ⓘ | Marialite | 9.FB.15 | Na4Al3Si9O24Cl |
| ⓘ | Analcime ? | 9.GB.05 | Na(AlSi2O6) · H2O |
| ⓘ | Laumontite | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| ⓘ | Heulandite-Ca | 9.GE.05 | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| ⓘ | Stilbite-Ca | 9.GE.10 | NaCa4(Si27Al9)O72 · 28H2O |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Heulandite Subgroup' | - | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ | 'Pinite' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Margarodite' | - | |
| ⓘ | 'Manganese Oxides' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Analcime | Na(AlSi2O6) · H2O |
| H | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| H | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| H | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Cronstedtite | Fe22+Fe3+((Si,Fe3+)2O5)(OH)4 |
| H | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| H | ⓘ Diaspore | AlO(OH) |
| H | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Epsomite | MgSO4 · 7H2O |
| H | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| H | ⓘ Euclase | BeAl(SiO4)(OH) |
| H | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| H | ⓘ Ferricopiapite | Fe3+0.67Fe43+(SO4)6(OH)2 · 20H2O |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| H | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| H | ⓘ Hydrotungstite | WO3 · 2H2O |
| H | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Lepidocrocite | Fe3+O(OH) |
| H | ⓘ Magnesio-hornblende | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| H | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| H | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| H | ⓘ Rozenite | FeSO4 · 4H2O |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Szomolnokite | FeSO4 · H2O |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| H | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘ Tungstite | WO3 · H2O |
| H | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| H | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Be | Beryllium | |
| Be | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Be | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Beryl var. Emerald | Be3Al2(Si6O18) |
| Be | ⓘ Euclase | BeAl(SiO4)(OH) |
| Be | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| B | Boron | |
| B | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Bismutite | (BiO)2CO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Graphite | C |
| C | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Smithsonite | ZnCO3 |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| O | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Bismutite | (BiO)2CO3 |
| O | ⓘ Brookite | TiO2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Cronstedtite | Fe22+Fe3+((Si,Fe3+)2O5)(OH)4 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| O | ⓘ Diaspore | AlO(OH) |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Beryl var. Emerald | Be3Al2(Si6O18) |
| O | ⓘ Enstatite | Mg2Si2O6 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Epsomite | MgSO4 · 7H2O |
| O | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| O | ⓘ Euclase | BeAl(SiO4)(OH) |
| O | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| O | ⓘ Ferberite | FeWO4 |
| O | ⓘ Ferricopiapite | Fe3+0.67Fe43+(SO4)6(OH)2 · 20H2O |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hedenbergite | CaFe2+Si2O6 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| O | ⓘ Hübnerite | MnWO4 |
| O | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| O | ⓘ Hydrotungstite | WO3 · 2H2O |
| O | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Lepidocrocite | Fe3+O(OH) |
| O | ⓘ Magnesio-hornblende | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| O | ⓘ Marialite | Na4Al3Si9O24Cl |
| O | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| O | ⓘ Rozenite | FeSO4 · 4H2O |
| O | ⓘ Quartz var. Rutilated Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Smithsonite | ZnCO3 |
| O | ⓘ Szomolnokite | FeSO4 · H2O |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘ Tungstite | WO3 · H2O |
| O | ⓘ Uraninite | UO2 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| O | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorite var. Chlorophane | CaF2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Na | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Na | ⓘ Marialite | Na4Al3Si9O24Cl |
| Na | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Na | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Na | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Mg | Magnesium | |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | ⓘ Enstatite | Mg2Si2O6 |
| Mg | ⓘ Epsomite | MgSO4 · 7H2O |
| Mg | ⓘ Magnesio-hornblende | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| Mg | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Al | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | ⓘ Diaspore | AlO(OH) |
| Al | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Beryl var. Emerald | Be3Al2(Si6O18) |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Euclase | BeAl(SiO4)(OH) |
| Al | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Magnesio-hornblende | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| Al | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| Al | ⓘ Marialite | Na4Al3Si9O24Cl |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Al | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Al | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Si | Silicon | |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Si | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | ⓘ Cronstedtite | Fe22+Fe3+((Si,Fe3+)2O5)(OH)4 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Beryl var. Emerald | Be3Al2(Si6O18) |
| Si | ⓘ Enstatite | Mg2Si2O6 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Euclase | BeAl(SiO4)(OH) |
| Si | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Si | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Si | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Magnesio-hornblende | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| Si | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| Si | ⓘ Marialite | Na4Al3Si9O24Cl |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Rutilated Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Si | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Si | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Bismuthinite | Bi2S3 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| S | ⓘ Epsomite | MgSO4 · 7H2O |
| S | ⓘ Ferricopiapite | Fe3+0.67Fe43+(SO4)6(OH)2 · 20H2O |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| S | ⓘ Linnaeite | Co2+Co23+S4 |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Rozenite | FeSO4 · 4H2O |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Native Sulphur | S8 |
| S | ⓘ Szomolnokite | FeSO4 · H2O |
| S | ⓘ Tungstenite | WS2 |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Cl | Chlorine | |
| Cl | ⓘ Marialite | Na4Al3Si9O24Cl |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| K | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite var. Chlorophane | CaF2 |
| Ca | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Ca | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Magnesio-hornblende | ◻Ca2(Mg4Al)(Si7Al)O22(OH)2 |
| Ca | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| Ca | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Ca | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Ca | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ca | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Ca | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Ca | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Ti | Titanium | |
| Ti | ⓘ Anatase | TiO2 |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Brookite | TiO2 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| Mn | Manganese | |
| Mn | ⓘ Hübnerite | MnWO4 |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Cronstedtite | Fe22+Fe3+((Si,Fe3+)2O5)(OH)4 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Fe | ⓘ Ferberite | FeWO4 |
| Fe | ⓘ Ferricopiapite | Fe3+0.67Fe43+(SO4)6(OH)2 · 20H2O |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Lepidocrocite | Fe3+O(OH) |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Rozenite | FeSO4 · 4H2O |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Szomolnokite | FeSO4 · H2O |
| Co | Cobalt | |
| Co | ⓘ Cobaltite | CoAsS |
| Co | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Co | ⓘ Linnaeite | Co2+Co23+S4 |
| Cu | Copper | |
| Cu | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| Cu | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| Zn | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| Zn | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Cobaltite | CoAsS |
| As | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Ag | Silver | |
| Ag | ⓘ Native Silver | Ag |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| W | Tungsten | |
| W | ⓘ Ferberite | FeWO4 |
| W | ⓘ Hübnerite | MnWO4 |
| W | ⓘ Hydrotungstite | WO3 · 2H2O |
| W | ⓘ Scheelite | Ca(WO4) |
| W | ⓘ Tungstenite | WS2 |
| W | ⓘ Tungstite | WO3 · H2O |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Bi | Bismuth | |
| Bi | ⓘ Native Bismuth | Bi |
| Bi | ⓘ Bismuthinite | Bi2S3 |
| Bi | ⓘ Bismutite | (BiO)2CO3 |
| U | Uranium | |
| U | ⓘ Uraninite | UO2 |
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Long_Hill,_Trumbull,_Connecticut |
|---|---|
| Wikidata ID: | Q14714979 |
| GeoNames ID: | 4837907 |
Localities in this Region
- Connecticut
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Piedmontia DomainDomain
- Taconic ArcVolcanic Arc
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
References
Quick NavTopCommoditiesMineral ListRock TypesOther DatabasesLocalities in RegionOther RegionsReferences





Long Hill, Trumbull, Fairfield County, Connecticut, USA