Thomaston, Litchfield County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Thomaston | Town |
| Litchfield County | County |
| Connecticut | State |
| USA | Country |
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities72 valid minerals. 3 erroneous literature entries.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
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Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Localities: Habit: capillary |
| ⓘ Albite Formula: Na(AlSi3O8) Localities: Route 109 roadcut, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam pegmatite, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA State Routes 8 and 222 interchange, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA Description: "White feldspar" hosting anatase, chlorite and bertrandite. |
| ⓘ Albite var. Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] Habit: granular, anhedral Colour: white to green Description: The common variety of albite found in local metamorphic rocks. Can be gemmy when very coarse grained. |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 |
| ⓘ 'Almandine-Spessartine Series' References: |
| ⓘ Anatase Formula: TiO2 Localities: Description: With chlorite and bertrandite in voids in "white feldspar". |
| ⓘ Anglesite ? Formula: PbSO4 Description: Included in a list by the reference with no supporting details. Presumably an alteration of galena, though in Connecticut cerussite is the more common alteration. |
| ⓘ Annite Formula: KFe2+3(AlSi3O10)(OH)2 Localities: Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam pegmatite, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Waterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA |
| ⓘ 'Apatite' Formula: Ca5(PO4)3A |
| ⓘ 'Apophyllite Group' Formula: AB4[Si8O20]X · 8H2O Habit: tabular to pyramidal Colour: off-white to yellow Description: In hydrothermal fault veins with chabazite, stilbite, quartz, pyrite, and calcite. |
| ⓘ Aragonite ? Formula: CaCO3 Description: Included in a list with a question mark by the primary reference. Latter lists do not include a question mark, but provide no supporting details. References: |
| ⓘ Autunite ? Formula: Ca(UO2)2(PO4)2 · 10-12H2O Description: Included in lists with no supporting information. No other primary or secondary U minerals are known from here, its detection may have been based on green UV fluorescence, possibly mistaken for the much more common opal-AN. References: |
| ⓘ Axinite-(Fe) Formula: Ca2Fe2+Al2BSi4O15OH Habit: "small plates and confused aggregates" (Schooner, 1961) Colour: pale lavender-gray Description: Intergrown with albite, epidote, diopside, actinolite, clinozoisite, and titanite w/accessory rutile, apparently from a calc-silicate lens. Yale Peabody Museum has two similar specimens labeled as coming from a Route 8 road cut. Another specimen has a label saying it is from a roadcut north of Thomaston, perhaps the large cuts at the intersection of Routes 8 and 222. Schooner (1961) says the assemblage was "found in the area around the Thomaston Dam" and that "some excellent specimens" were obtained. Clear microcrystals are present in little voids between the massive axinite plates. |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 Description: "at least one azurite nodule found and considered to be unlike anything thus far seen in Connecticut." Januzzi (1976). |
| ⓘ Baryte Formula: BaSO4 Habit: tabular Colour: white Fluorescence: bright yellow, cream under SW UV Description: Mostly it is found massive, but it also occurs in crystals up to one-half inch or more. May be confused with calcite, which occurs here as very thin tabular white crystals that mimic barite. Vogt describes baryte as "thin, white tabular crystals from a quarter inch to two inches across. While some of the barite fluoresces a cream color under shortwave ultraviolet light, other appears to be a salmon-pink." The latter is color is typical of calcite fluorescence. However, Vogt also states: "A bright yellow fluorescence of barite was observed when small crystals of honey-colored calcite were in close proximity to the barite. Some unusual forms of pyrite can be found in between the barite platelets. The mineral occurs associated with calcite, fluorite, galena, pyrite, quartz, sphalerite". Use acid to differentiate baryte from tabular calcite here. |
| ⓘ Bertrandite Formula: Be4(Si2O7)(OH)2 Description: Microcrystals with chlorite and anatse in voids in "white feldspar". |
| ⓘ Beryl ? Formula: Be3Al2(Si6O18) Description: Included in species lists with no supporting information. Possibly occurs in the pegmatite at the cut, but no documented specimens. |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ Brookite Formula: TiO2 Description: Occurs in Alpine clefts in the schist with anatase. |
| ⓘ Calcite Formula: CaCO3 Localities: State Routes 8 and 222 interchange, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA Waterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA Habit: scalenohedral Colour: white Fluorescence: pink Description: Translucent, doubly-terminated crystals typically <1 cm, with orange-yellow stilbite. |
| ⓘ 'Calcium Amphibole Subgroup var. Hornblende' Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ Cerussite Formula: PbCO3 Description: Alteration crust on galena. Small crystals. References: |
| ⓘ 'Chabazite' Localities: Habit: rhombohedral, twinned Colour: pale yellow-orange Description: good microcrystals can be found together with other zeolites
The Bill Henderson micromount collection at Yale Peabody Museum has one specimen with rhombohedral and twinned crystals. |
| ⓘ Chalcopyrite Formula: CuFeS2 Localities: Colour: brassy-yellow Description: Small masses with sphalerite in schist-hosted hydrothemal fault veins. |
| ⓘ 'Chlorite Group' Localities: Description: With anatase and bertrandite in voids in "white feldspar". |
| ⓘ Clinozoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Localities: Habit: masses of elongated crystals Colour: clove brown Description: In a calc-silicate lens with intergrown albite, actinolite, axinite-(Fe), diopside, epidote, titanite, rutile. |
| ⓘ Copiapite Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O Colour: yellow-green Description: Encrustations from the weathering of pyrite and pyrrhotite. |
| ⓘ Formula: CaB(SiO4)(OH) Locality: Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA - erroneously reported Description: According to Segeler & Molon (1985) found in trap rock ballast placed along the railroad tracks, so not really from this locality. |
| ⓘ Diopside Formula: CaMgSi2O6 Localities: Colour: pale to emerald green Description: Schooner (1961) reports collecting specimens containing small emerald-green areas. |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Localities: Description: Included in species lists without any supporting data, but it is very common in the state and plausible for the metamorphic geology of the area. |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F Localities: Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA State Routes 8 and 222 interchange, Thomaston, Litchfield County, Connecticut, USA Whispering Pines residential construction site, Thomaston, Litchfield County, Connecticut, USA Waterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA |
| ⓘ Fluorite Formula: CaF2 Localities: Habit: cubic, sometimes modified by dodecahedron and tetrahexahedron Colour: purple and green shades to colorless, usually in layers Fluorescence: blue-white to purplish blue under SW UV, often zoned with the daylight color. Description: Very common in hydrothermal fault veins as coarse crystalline masses, found with most minerals present in these veins: quartz, calcite, galena, sphalerite, pyrite, zeolites, with open spaces lined by tightly packed, rough-surfaced (from many small sub-faces) crystals. Crystals to 7 cm were removed intact during the initial blasting of the railroad cut. As well-formed euhedral isolated crystals in voids with other minerals usually up to 2 cm. |
| ⓘ Galena Formula: PbS |
| ⓘ Goethite Formula: Fe3+O(OH) Colour: brown Description: Common weathering product. |
| ⓘ Graphite Formula: C Localities: Habit: tabular, botryoidal Colour: dark gray Description: Botryoidal masses, also included in large fluorapatite but may be more common hidden in biotite-rich matrix. |
| ⓘ Greenockite ? Formula: CdS Colour: yellow Description: Though reportedly occurring with sphalerite at several Connecticut localities, these reports appear to be based solely on the yellow color. While plausible, they lack analytical confirmation; both chemical and structural to differentiate it from similar appearing, dimorphous hawleyite. Schooner (1961) claims greenockite rarely forms intergrowths with sphalerite here. |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 Localities: Description: With clinozoisite and diopside. |
| ⓘ Gypsum Formula: CaSO4 · 2H2O References: |
| ✪ Harmotome Formula: Ba2(Si12Al4)O32 · 12H2O Habit: Cruciform Marburg twins, with or without re-entrants, or simpler Morvenite twins. Colour: white Description: White crystals to about 1 cm, commonly dusted with micro-pyrites. This zeolite has the same morphology as phillipsite, but according to Tschernich's 1992 "Zeolites of the World", harmotome is typical of lead deposits whereas phillipsite occurs in volcanics. This locality is thus favorable for harmotome. Henderson (1979) analyzed crystals and found that "...microprobe analysis shows the Ba:Si ratio to be 1.2:6, and the amounts of K, Na and Ca to be low. This data fits harmotome perfectly, and is not consistent with either phillipsite or wellsite."
|
| ⓘ Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O Habit: hemispherical aggregates of radiating needles or thin blades Colour: white Description: As tiny white balls (1 - 2 mm) on fluorite. The balls appeared to be in radiating needles or thin blades. Erroneously reported by some as pectolite. |
| ✪ Heulandite-Ca Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O Habit: coffin-shaped Colour: colorless to pale yellow or tan Description: Common in the hydrothermal fault veins with quartz, sphalerite, pyrite, galena. Pearly, translucent crystals usually <1 cm, but rarely up to 2.5 cm. References: |
| ⓘ 'Heulandite Subgroup' Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O Localities: Habit: coffin-shaped Colour: colorless to pale yellow or tan Description: Common in the hydrothermal fault veins with quartz, sphalerite, pyrite, galena. Pearly, translucent crystals usually <1 cm, but rarely up to 2.5 cm. |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2 Habit: anhedral to subhedral elongated prisms Colour: very dark green to black Description: A component of local amphibolite lenses in the schist. More specifically, it is probably common magnesio-hornblende. |
| ⓘ Hydrozincite Formula: Zn5(CO3)2(OH)6 Habit: colloform crusts Colour: white Fluorescence: blue-white Description: Colloform white crusts on schist collected by Ronald Januzzi. |
| ⓘ Ilmenite Formula: Fe2+TiO3 Localities: Habit: subhedral tabular Colour: black Description: Accessory mineral in the schist, especially in quart-rich segregations with kyanite. |
| ⓘ Jarosite ? Formula: KFe3+3(SO4)2(OH)6 Description: Included by the reference in a list of species, with a question mark and no supporting details. |
| ⓘ Kaolinite ? Formula: Al2(Si2O5)(OH)4 Colour: white Description: A mass of white clay occurs in a fault that cuts the pegmatite, with material constantly sliding out onto the track. Presumed to be kaolinite, but unanalyzed. Associated with pinkish montmorillonite. |
| ⓘ Kyanite Formula: Al2(SiO4)O Localities: Habit: bladed Colour: pale to sky blue Description: Crystalline masses in the host schist, commonly heavily rust-stained and hard to recognize. Crystals can exceed 10 cm. It fluoresces a weak pink-red under longwave UV (Don Swenson). |
| ⓘ Laumontite Formula: CaAl2Si4O12 · 4H2O |
| ⓘ 'Limonite' Colour: rusty brown Description: Common weathering product staining rocks and minerals. |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Description: An accessory mineral in the schist. |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Melanterite Formula: Fe2+(H2O)6(SO4) · H2O Description: Common weathering product of pyrite. |
| ⓘ 'Mica Group' |
| ⓘ Microcline Formula: K(AlSi3O8) Localities: Habit: prismatic Colour: very pale peach Description: "large feldspar crystals collected here up to one foot or more in size" (reported as orthoclase), Januzzi (1976). |
| ⓘ Molybdenite ? Formula: MoS2 References: |
| ⓘ Montmorillonite ? Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O Colour: pink Description: A visual ID based on color, clay texture and association with probably kaolinite in the "slide" fault zone that cuts the pegmatite. |
| ⓘ Mordenite ? Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O Description: Included in a list of species with no supporting documentation, except for an "unconfirmed" footnote. |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Localities: Thomaston Dam pegmatite, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Thomaston, Litchfield County, Connecticut, USA Waterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Colour: pale green Description: Fine-grained soft layers filling seams in pegmatite. |
| ⓘ Native Gold Formula: Au |
| ⓘ Native Sulphur ? Formula: S8 Description: Included in a list of species with a question mark and no supporting data. Possibly confusion with copiapite. |
| ⓘ Natrolite Formula: Na2Al2Si3O10 · 2H2O |
| ⓘ Opal Formula: SiO2 · nH2O Localities: Habit: encrustations Colour: colorless to milky white Fluorescence: green under LW and SW UV Description: Very common as thin to slightly botryoidal, transparent to milky encrustations usually on visible under UV light. |
| ⓘ Opal var. Hyalite Formula: SiO2 · nH2O |
| ⓘ Opal var. Opal-AN Formula: SiO2 · nH2O Habit: encrustations Colour: colorless to milky white Fluorescence: green under LW and SW UV Description: Very common as thin to slightly botryoidal, transparent to milky encrustations usually on visible under UV light. |
| ⓘ 'Phillipsite Subgroup' Formula: (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O Description: This zeolite has the same morphology as harmotome, but according to Tschernich's 1992 "Zeolites of the World", harmotome is typical of lead deposits whereas phillipsite occurs in volcanics. This locality is thus favorable for harmotome. Henderson (1979) analyzed crystals and found that "...microprobe analysis shows the Ba:Si ratio to be 1.2:6, and the amounts of K, Na and Ca to be low. This data fits harmotome perfectly, and is not consistent with either phillipsite or wellsite." |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Localities: Colour: Brown Description: Inferred with the association of a brown mica with marble. |
| ⓘ Formula: Ca2Al2Si3O10(OH)2 Locality: Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA - erroneously reported Description: According to Segeler & Molon (1985) found in trap rock ballast placed along the railroad tracks, so not really from this locality. |
| ⓘ Pyrite Formula: FeS2 Localities: Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Waterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA State Routes 8 and 222 interchange, Thomaston, Litchfield County, Connecticut, USA Habit: cubic, pyritohedral, octahedral, unusual elongated forms. Penetration twins. Colour: brass-yellow, sometimes iridescent or with a reddish-brown coating. Description: Crystals generally very small <2mm, but typically well formed and complex, associated with barite, galena, quartz, sphalerite, stilbite, heulandite. Twinned crystals are very common. Some repeated twins have been found >1 cm. Pyrite aggregates may mimic marcasite crystal groups with rather typical curved faces. Under the microscope they appear as aggregates of small cubes. |
| ⓘ Pyrolusite ? Formula: Mn4+O2 Description: A black earthy mineral which has not been properly identified. References: |
| ✪ Pyromorphite Formula: Pb5(PO4)3Cl Habit: radiating groups of elongated prismatic Colour: green Description: Fine green crystals, some of which comprise radiating groups. Schooner (1961) describes "beautiful specimens...These are equally small, compared with pyromorphite from classical localities, but they are clean and quite attractive. Some show the mineral, associated with wulfenite crystals, in vugs of pegmatite, near ore veins; others have pyromorphite filling seams in green and purple fluorite." |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 Localities: Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA Thomaston Dam pegmatite, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA State Routes 8 and 222 interchange, Thomaston, Litchfield County, Connecticut, USA Reynolds Bridge, Thomaston, Litchfield County, Connecticut, USA Waterbury Road quarry, Thomaston, Litchfield County, Connecticut, USA Habit: massive in schist, pegmatite and granite. Elongated prismatic in hydrothermal veins, typically as a druse lining open spaces. Dauphine and Japan-law twins, bowtie aggregates. Colour: colorless, milky, pale smoky Description: Crystals usually as a druse, rarely >2.5 cm. Several crystals were found to be translucent, milky white from the base to about three quarters of the height, with the tip becoming completely transparent towards its termination. Associated in the hydrothermal veins with barite, calcite, fluorite, galena, pyrite, sphalerite, and zeolites. |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 |
| ⓘ Rutile Formula: TiO2 Localities: Colour: metallic Description: Nearly equant, metallic and very lustrous microcrystal on quartz in the Bill Henderson collection. It is labeled as galena. |
| ⓘ 'Scapolite' Colour: purplish pink through pink to gray to white Description: "look like pseudomorphs after possibly a scapolite (these are probably muscovite). These pseudomorphs are associated with grossular crystals, clinozoisite, and occasional diopside." Januzzi (1976). |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Habit: subhedral elongated prismatic Colour: black Description: Can be an accessory mineral in the pegmatite or schist. |
| ⓘ Scolecite Formula: CaAl2Si3O10 · 3H2O References: |
| ⓘ Sillimanite Formula: Al2(SiO4)O Habit: Fibrous Description: Accessory mineral in schist. |
| ⓘ Smithsonite ? Formula: ZnCO3 Description: Included in a list of species with no supporting data and a question mark. Presumably an alteration of sphalerite, but hydrozincite is much more common locally. |
| ⓘ Sphalerite Formula: ZnS Localities: Habit: pagoda-like polysynthetic twins on (111) resulting in pseudo-hexagonal "prisms" with re-entrant striae Colour: dark reddish-brown, dark brown, black Description: In hydrothermal fault veins associated with barite, calcite, fluorite, galena, pyrite, quartz, and zeolites. Pete Dunn analyzed crystals in 1973: “It has been said that the wurtzite from Thomaston Dam, Connecticut, was of a type that changed to sphalerite under the crushing necessary for a powder x-ray photo. This thought intrigued me and I checked it out by taking a regular powder photo after crushing the sample in the usual fashion, and then took another x-ray using the Gandolfi camera which gives powder photos from single crystals. Result — both photos perfect sphalerite patterns, and identical" (Yedlin, 1973a). Henderson (1979) showed diagrams of sphalerite crystals epitaxial on supposed wurtzite, and the other way around, with a (0001) (pinacoidal) face of "wurtzite" matching a (111) (tetrahedral) face of sphalerite. In any case, the crystals from this locality, commonly labeled "wurtzite" appear to be polysynthetically twinning, combined positive and negative tetrahedra of sphalerite on a 6-sided (111) face. Note the re-entrant angles that circumscribe the "prisms" of these crystals, which are indicative of twinning. |
| ⓘ Staurolite Formula: Fe2+2Al9Si4O23(OH) |
| ✪ Stellerite ? Formula: Ca4(Si28Al8)O72 · 28H2O Habit: tabular elongated or in wheat sheave crystal aggregates Colour: tan, pale yellow to yellow-orange Description: In 2018, two "stilbite subgroup" specimens were analyzed via SEM-EDS and were determined to be probably stilbite-Ca www.mindat.org/photo-492320.html (as opposed to stellerite) and possibly stellerite www.mindat.org/photo-768454.html, which cannot be visually differentiated. References: |
| ✪ Stilbite-Ca Formula: NaCa4(Si27Al9)O72 · 28H2O Habit: tabular elongated or in wheat sheave crystal aggregates Colour: tan, pale yellow to yellow-orange Description: In 2018, two specimens were analyzed via SEM-EDS and were determined to be probably stilbite-Ca www.mindat.org/photo-492320.html (as opposed to stellerite) and possibly stellerite www.mindat.org/photo-768454.html, which cannot be visually differentiated. References: |
| ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O Localities: Reported from at least 7 localities in this region. Habit: divergent fan-like to bow-tie aggregates of bladed, tabular crystals with pointed terminations Colour: white to creamy yellow Description: Crystal aggregates to about 2.5 cm associated with barite, calcite, pyrite, quartz, sphalerite, and fluorite. Some of the best Connecticut stilbite was found here sometimes richly mineralized in voids in hydrothermal veins and fractures, covering other hydrothermal minerals or on schist, pegmatite or granite.
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| ⓘ Stilpnomelane ? Formula: K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 Description: Included in a list of species with a question mark and no supporting data. |
| ⓘ Titanite Formula: CaTi(SiO4)O Localities: Description: "large" Januzzi (1976). |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 Habit: elongated prismatic Colour: pale brown to gray Description: Mostly massive material to subhedral, elongated prismatic crystals in calc-silicate-rich zones within the marble exposure. References: Anthony Scalzi collectionIdentified by Harold Moritz: Visual Identification |
| ⓘ Vanadinite ? Formula: Pb5(VO4)3Cl Description: "In the [Marcelle and Charles] Weber collection, the author saw a specimen of oxidized metallic minerals, from the Thomaston Dam railroad cut, containing tiny brown prisms of what may be the endlichite variety of this mineral. This remains in the problematical category." Schooner (1961) |
| ⓘ Wulfenite Formula: Pb(MoO4) Habit: peudocubic, bipyramidal Colour: orange-red Description: "Here and there small microscopic wulfenites occur both as pseudocubic (similar to the Loudville, Massachusetts, material only considerably smaller) as well as bipyramidal crystals (Marcelle Weber, personal communication, 1984)." (Segeler & Molon, 1985). At least one former Ron Januzzi specimen of a platy orange mineral in crude micro-crystals turned out to be calcite. |
| ⓘ Formula: (Zn,Fe)S Locality: Thomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA - erroneously reported Description: Erroneously reported by Myer (1962) and refuted by XRD analyses by Pete Dunn (Yedlin, 1973a) showing "perfect sphalerite patterns". Pseudo-hexagonal crystals are polysynthetically twinned sphalerite positive and negative tetrahedra. |
| ⓘ Zircon Formula: Zr(SiO4) Fluorescence: orange-yellow Description: Microscopic accessory in the pegmatites. |
| ⓘ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| ⓘ Zoisite var. Thulite Formula: {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| ⓘ | Graphite | 1.CB.05a | C |
| ⓘ | Native Sulphur ? | 1.CC.05 | S8 |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Greenockite ? | 2.CB.45 | CdS |
| ⓘ | Wurtzite ? | 2.CB.45 | (Zn,Fe)S |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Molybdenite ? | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal var. Opal-AN | 4.DA.10 | SiO2 · nH2O |
| ⓘ | 4.DA.10 | SiO2 · nH2O | |
| ⓘ | var. Hyalite | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Pyrolusite ? | 4.DB.05 | Mn4+O2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| ⓘ | Brookite | 4.DD.10 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Smithsonite ? | 5.AB.05 | ZnCO3 |
| ⓘ | Aragonite ? | 5.AB.15 | CaCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Hydrozincite | 5.BA.15 | Zn5(CO3)2(OH)6 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite ? | 7.AD.35 | PbSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Jarosite ? | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Melanterite | 7.CB.35 | Fe2+(H2O)6(SO4) · H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Copiapite | 7.DB.35 | Fe2+Fe3+4(SO4)6(OH)2 · 20H2O |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| ⓘ | Vanadinite ? | 8.BN.05 | Pb5(VO4)3Cl |
| ⓘ | Autunite ? | 8.EB.05 | Ca(UO2)2(PO4)2 · 10-12H2O |
| Group 9 - Silicates | |||
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Sillimanite | 9.AF.05 | Al2(SiO4)O |
| ⓘ | Kyanite | 9.AF.15 | Al2(SiO4)O |
| ⓘ | Staurolite | 9.AF.30 | Fe2+2Al9Si4O23(OH) |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Datolite ? | 9.AJ.20 | CaB(SiO4)(OH) |
| ⓘ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
| ⓘ | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| ⓘ | 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 var. Thulite | 9.BG.10 | {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH) |
| ⓘ | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) | |
| ⓘ | Beryl ? | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Tremolite | 9.DE.10 | ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ | Prehnite ? | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Annite | 9.EC.20 | KFe2+3(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Montmorillonite ? | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ | Kaolinite ? | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Stilpnomelane ? | 9.EG.40 | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Oligoclase | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| ⓘ | Natrolite | 9.GA.05 | Na2Al2Si3O10 · 2H2O |
| ⓘ | Scolecite | 9.GA.05 | CaAl2Si3O10 · 3H2O |
| ⓘ | Laumontite | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| ⓘ | Harmotome | 9.GC.10 | Ba2(Si12Al4)O32 · 12H2O |
| ⓘ | Mordenite ? | 9.GD.35 | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| ⓘ | Heulandite-Ca | 9.GE.05 | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| ⓘ | Stilbite-Ca | 9.GE.10 | NaCa4(Si27Al9)O72 · 28H2O |
| ⓘ | Stellerite ? | 9.GE.15 | Ca4(Si28Al8)O72 · 28H2O |
| Unclassified | |||
| ⓘ | 'Apophyllite Group' | - | AB4[Si8O20]X · 8H2O |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chabazite' | - | |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Heulandite Subgroup' | - | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| ⓘ | 'Calcium Amphibole Subgroup var. Hornblende' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Phillipsite Subgroup' | - | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Almandine-Spessartine Series' | - | |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(C2+4C3+)(AlSi7O22)W2 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| H | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| H | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| H | ⓘ Azurite | Cu3(CO3)2(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 | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| H | ⓘ Datolite | CaB(SiO4)(OH) |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Harmotome | Ba2(Si12Al4)O32 · 12H2O |
| H | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| H | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| H | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| H | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| H | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| H | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| H | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| H | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| H | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| H | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Opal var. Hyalite | SiO2 · nH2O |
| Be | Beryllium | |
| Be | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Datolite | CaB(SiO4)(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 | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Graphite | C |
| C | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Smithsonite | ZnCO3 |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| O | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Brookite | TiO2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Datolite | CaB(SiO4)(OH) |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Harmotome | Ba2(Si12Al4)O32 · 12H2O |
| O | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| O | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| O | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| O | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Kyanite | Al2(SiO4)O |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| O | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| O | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| O | ⓘ Sillimanite | Al2(SiO4)O |
| O | ⓘ Smithsonite | ZnCO3 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| O | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| O | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘ Vanadinite | Pb5(VO4)3Cl |
| O | ⓘ Wulfenite | Pb(MoO4) |
| 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 | ⓘ Almandine-Spessartine Series | |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| O | ⓘ Opal var. Hyalite | SiO2 · nH2O |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Na | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Na | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Na | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Na | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Na | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| 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 | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| Mg | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Harmotome | Ba2(Si12Al4)O32 · 12H2O |
| Al | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Al | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Kyanite | Al2(SiO4)O |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Al | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| Al | ⓘ Sillimanite | Al2(SiO4)O |
| Al | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Al | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| Al | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| 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 | ⓘ Almandine-Spessartine Series | |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Si | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| 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 | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Datolite | CaB(SiO4)(OH) |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Harmotome | Ba2(Si12Al4)O32 · 12H2O |
| Si | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Si | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Si | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Kyanite | Al2(SiO4)O |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Si | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| Si | ⓘ Sillimanite | Al2(SiO4)O |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Si | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| Si | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| 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 | ⓘ Almandine-Spessartine Series | |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Opal var. Hyalite | SiO2 · nH2O |
| P | Phosphorus | |
| P | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| S | ⓘ Galena | PbS |
| S | ⓘ Greenockite | CdS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Native Sulphur | S8 |
| S | ⓘ Wurtzite | (Zn,Fe)S |
| Cl | Chlorine | |
| Cl | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Cl | ⓘ Vanadinite | Pb5(VO4)3Cl |
| K | Potassium | |
| 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 | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Datolite | CaB(SiO4)(OH) |
| 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 | ⓘ Heulandite Subgroup | (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O |
| Ca | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| Ca | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Ca | ⓘ Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Ca | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| Ca | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| Ca | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| 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 |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| 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 | CaTi(SiO4)O |
| V | Vanadium | |
| V | ⓘ Vanadinite | Pb5(VO4)3Cl |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Mn | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Mn | ⓘ Almandine-Spessartine Series | |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Copiapite | Fe2+Fe43+(SO4)6(OH)2 · 20H2O |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Fe | ⓘ Stilpnomelane | K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27 |
| Fe | ⓘ Wurtzite | (Zn,Fe)S |
| Fe | ⓘ Almandine-Spessartine Series | |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Zn | ⓘ Sphalerite | ZnS |
| Zn | ⓘ Wurtzite | (Zn,Fe)S |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Cd | Cadmium | |
| Cd | ⓘ Greenockite | CdS |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Harmotome | Ba2(Si12Al4)O32 · 12H2O |
| Ba | ⓘ Phillipsite Subgroup | (Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Pb | ⓘ Vanadinite | Pb5(VO4)3Cl |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
| U | Uranium | |
| U | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
Fossils
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| Wikipedia: | https://en.wikipedia.org/wiki/Thomaston,_Connecticut |
|---|---|
| Wikidata ID: | Q1561061 |
| GeoNames ID: | 4844183 |
Localities in this Region
- Connecticut
- Litchfield County
- Connecticut
Other Regions, Features and Areas that Intersect
North AmericaContinent
North America PlateTectonic Plate
- Piedmontia DomainDomain
- Taconic ArcVolcanic Arc
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Thomaston Dam pegmatite, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA