Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Cobalt | Prospect |
| East Hampton (Chatham) | Quarry |
| Middlesex County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 33' 45'' North , 72° 33' 21'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| East Hampton | 2,691 (2017) | 4.7km |
| Lake Pocotopaug | 3,436 (2017) | 5.5km |
| Portland | 5,862 (2017) | 7.1km |
| Higganum | 1,698 (2017) | 7.3km |
| Middletown | 46,756 (2017) | 7.9km |
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 |
|---|---|---|
| Lapidary and Mineral Society of Central Connecticut | Meriden, Connecticut | 21km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 35km |
| New Haven Mineral Club | New Haven, Connecticut | 42km |
Mindat Locality ID:
253774
Long-form identifier:
mindat:1:2:253774:3
GUID (UUID V4):
b67073ac-302a-468a-bd73-77a6c10044e0
A section of the town of East Hampton named for the station stop on the former Air Line Railroad (began 1873) and centered on the intersection of state routes 66 and 151 (coordinates). The station was named for the cobalt mines situated just north of the rail road, at the foot of Great Hill.
Cobalt is known for the minerals from these mines and from some local pegmatites.
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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-localities67 valid minerals. 8 erroneous literature entries.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Component of the host rock. |
| ⓘ Albite Formula: Na(AlSi3O8) Localities: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Component of the host rocks. |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 Localities: Description: an accessory mineral in the pegmatite |
| ✪ 'Almandine-Spessartine Series' Locality: Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: trapezohedral Colour: dark maroon with black coating Description: Crystals to 4 inches. Referred to by Schooner as spessartine, but most likely impure almandine based on XRF analyses of many other district pegmatitic garnets. |
| ⓘ Annabergite Formula: Ni3(AsO4)2 · 8H2O Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: coatings Colour: bright to pale green Description: waxy, pale to bright green coatings on ore-bearing host rocks, particularly around bronze nickeline grains. |
| ⓘ Annite Formula: KFe2+3(AlSi3O10)(OH)2 Localities: Description: fka biotite, an accessory mineral in the intermediate zone of the pegmatite. |
| ⓘ Anorthite Formula: Ca(Al2Si2O8) Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: anhedral grains Colour: greenish-gray Description: A component of the banded amphibolite of Shepard's Lode. |
| ⓘ Arrojadite-(KFe) ? Formula: (KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2 Description: reported by Dick Schooner, no details in the reference. |
| ⓘ Arsenolite ? Formula: As2O3 Localities: Habit: micro-crystalline coatings Description: Reported as microcrystallized coatings on arsenopyrite and quartz at Shepard's Lode. Scorodite is intimately associated; at times in botryoidal crusts that are almost sub-translucent. |
| ⓘ Arsenopyrite Formula: FeAsS Localities: Habit: massive, striated aggregates Description: Arsenopyrite in the Winthrop and Champion Lode quartz veins occurs as centimeter sized massive concentrations. Associated with pyrrhotite locally altered to pyrite. Native gold, generally as micron sized grains, is found, along with pyrite and chalcopyrite, in a network of thin fractures and veins cutting the arsenopyrite. The arsenopyrite is not the Co-Ni ore, earlier references to and analyses of "danaite" are probably from confusion with the loellingite ore veins. References: |
| ⓘ Arsenopyrite var. Danaite Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: massive, striated aggregates Description: The arsenopyrite is not the Co-Ni ore, earlier references to and analyses of "danaite" are probably from confusion with the loellingite ore veins. |
| ⓘ Autunite Formula: Ca(UO2)2(PO4)2 · 10-12H2O |
| ⓘ Formula: Fe3+6(PO4)4O(OH)4 · 6H2O Locality: State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Habit: coatings Colour: green Description: reported by Dick Schooner, no details in the reference. Visually identified by Van King from posted photographs but an XRD test made in the National Museum Prague (dr. Jiri Sejkora) of the green material with some matrix found "no beraunite but something similar to messelite" and apatite, which are the matrix species. EDS analysis shows green mineral is mitridatite. |
| ⓘ Bertrandite Formula: Be4(Si2O7)(OH)2 |
| ⓘ Beryl Formula: Be3Al2(Si6O18) Habit: columnar Colour: pale yellow to light green Description: "Light-green beryl occurs in crystals 1 to 5 inches in diameter and 1 to 17 inches long. Most of the crystals are large enough to be sorted by hand but some are intimately intergrown with quartz and plagioclase. Beryl was found chiefly in the nose of the pegmatite at the northwest; end of the quarry, in the intermediate zone." (Cameron et al 1954) |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: A component of the host rocks at Robert's Lode. |
| ⓘ Breithauptite ? Formula: NiSb Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: No details in reference, all others cite this one. |
| ⓘ Chalcopyrite Formula: CuFeS2 Localities: Habit: grains Description: In the ore of Shepard's Lode and also in the arsenopyrite of the gold-bearing lodes. References: |
| ⓘ 'Chlorite Group' Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Component of the host rocks. |
| ⓘ Cobaltite ? Formula: CoAsS Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reported by Parker Cleaveland in 1822. No one else appears to have found the mineral there. |
| ⓘ Columbite-(Fe) Formula: Fe2+Nb2O6 |
| ⓘ 'Copiapite Group' |
| ⓘ Cordierite ? Formula: (Mg,Fe)2Al3(AlSi5O18) Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reference provides no details. Probably a component of the host rocks. |
| ⓘ Diadochite Formula: Fe3+2(PO4)(SO4)(OH) · 6H2O Habit: coatings and micro globules Colour: orange Description: Orange coatings on triphylite, messelite, and other related phosphates |
| ⓘ Diopside ? Formula: CaMgSi2O6 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reference provides no details, probably a component of the host rocks. |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: earthy incrustation or delicate needles Colour: red Description: Formed from the weathering of Co-rich loellingite. "Eugene Franckfort reported that the face of one lode, opened more than a century ago, was covered with, abundant erythrite crystals… as fine as any which he had seen in his native Europe." (Schooner 1958). "The Francfort mineral collection [at Wesleyan University] contains some excellent samples of erythrite from Bucks Shaft" (Gray 2005). It was common during the mining, but very scarce now.
A small flake was tested in concentrated HCl and it turned the solution blue, indicating erythrite. |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F Localities: Colour: gray Fluorescence: yellow Description: an accessory mineral in the pegmatite. |
| ⓘ Gahnite Formula: ZnAl2O4 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Colour: green Description: "broken green crystals, a quarter of an inch in diameter, in gneiss" (Schooner 1958) |
| ⓘ Galena Formula: PbS Localities: Description: associated with the triphylite secondaries. References: |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Colour: hyacinth-red Description: Gray (2005) refers to "characteristic hyacinth-red Mn rich garnets" with the ore minerals at Shepard's and Robert's Lodes. Garnet was noted by other references, species undetermined. |
| ⓘ Gersdorffite Formula: NiAsS Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: grains Description: "An analysis by Fairchild, published in 1931, and quoted in the Seventh Edition of “Dana’s System of Mineralogy”, gave: iron 3.9, cobalt 0.7, nickel 31.6, antimony 9.1, arsenic 34.9, sulfur 17.1, and bismuth 0.4%" (Schooner 1958); with the ore minerals at Shepard's Lode (Gray 2005). |
| ⓘ Goethite Formula: α-Fe3+O(OH) Localities: Description: common surficial alteration of ore minerals |
| ⓘ Gold Formula: Au Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: micron to mm-sized grains Description: "Native gold, generally as micron sized grains, is found, along with pyrite and chalcopyrite, in a network of thin fractures and veins cutting the arsenopyrite. Although much of the gold is very fine grained and is difficult to see, even with a strong hand lens, grains up to a mm are present" Gray (2005) |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: subhedral grains Colour: pale rose Description: Component of Shepard and Robert's Lodes, garnets in these layers have a compositions about midway between almandine and grossular, with also a spessartine component. |
| ⓘ Formula: CaBe(PO4)F Locality: State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Description: undoubtedly hydroxylherderite as there is still but one or two chemically verified herderite specimen in the world and even the so-called type locality for true herderite does not have the species by modern chemical analyses. "Chemical analysis of herderite, collected by the author, at the State Forest Mine in East Hampton, Connecticut, indicate that it is the hydroxyl variety" (Januzzi 1994). |
| ⓘ Heterosite Formula: (Fe3+,Mn3+)PO4 Description: alteration of triphylite associated with ferrisicklerite |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: elongated to acicular grains Colour: black Description: Component of the host amphibolite rock at Shepard's Lode. Reported as higher in aluminum that "common hornblende". Layers can have felted textures involving bundles and sprays of long needles and blades - grains whose size may exceed one centimeter. |
| ⓘ Hydroxylapatite Formula: Ca5(PO4)3(OH) Habit: micro hexagonal prisms Colour: colorless to white Description: in pockets of altered triphylite with beraunite, whitmoreite, messelite, etc.
Tested by XRD at the National Museum Prague (dr. Jiri Sejkora). |
| ⓘ Hydroxylherderite Formula: CaBe(PO4)(OH) Habit: flat prisms with dome terminations Colour: pale yellow Description: Specimens analyzed by Leavens, et al. (1978) from New England were analyzed and found to be true hydroxylherderite. As the study was made after the reference cited and as there are only one or two analyzed true herderites in the world, the entry was changed to conform to modern nomenclature.
Leavens, et al., 1978, Compositional and Refractive Index Variations of the Herderite-Hydroxyl-herderite Series, American Mineralogist, v 63, p. 913-917.
"Chemical analysis of herderite, collected by the author, at the State Forest Mine in East Hampton, Connecticut, indicate that it is the hydroxyl variety" (Januzzi 1994).
Described (as herderite) by Schooner (1958) as "twenty five 1/32 inch pale yellow tabular crystals in a vug of albite and altered siderite, near a contact with semi-columnar beryl" |
| ⓘ Jarosite ? Formula: KFe3+3(SO4)2(OH)6 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: Coatings Description: Reported by Dick Schooner as "Coatings on schist" in Januzzi (1976) p. 234. |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Laueite Formula: Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Habit: microscopic elongated prisms Colour: red-orange Description: "Tiny orange crystals are associated with strunzite fibers in vugs of altered messelite, with siderite and mitridatite" (Schooner 1961) |
| ⓘ 'Limonite' Localities: |
| ⓘ Löllingite Formula: FeAs2 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Loellingite is in fact the primary Co-Ni ore of Shepard's and Robert's Lodes. "Shepard [1837] initially identified the Co-Ni bearing arsenide as the cubic di-arsenide, smaltite but after obtaining and studying additional material from his own mine he pronounced it to be a new orthorhombic tri-arsenide for which he proposed the name "Chathamite"....In the mid 1850s Genth (in Goodrich, 1854) questioned Shepard's identification and suggested that Chathamite was simply an iron rich variety of the cubic arsenide chloanthite (a misconception that perpetuated up to, and including, the 7th edition of Dana's Manual of Mineralogy). As it turns out, Shepard's Chathamite is indeed orthorhombic, but today would be classified as a nickel-cobalt rich loellingite." Gray (2005) |
| ⓘ Ludlamite Formula: Fe2+3(PO4)2 · 4H2O Habit: cleavable masses Colour: pale green Description: "Light green cleavages were associated with siderite and triphylite. It also formed thin borders along messelite areas in hydrothermally altered triphylite." (Schooner 1961) |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Melanterite Formula: Fe2+(H2O)6SO4 · H2O Localities: Description: Reference provides no details, probably a surficial alteration product of the ore minerals. |
| ⓘ Messelite Formula: Ca2Fe2+(PO4)2 · 2H2O Habit: massive curved, lamellar aggregates, acicular microcrystals Colour: white to tan, sometimes a green coating of an unknown. Description: "Many solid white or tan masses, with a curved lamellar structure, were collected; some were two inches across. The messelite was intergrown with siderite, or embedded in triphylite. Distinct crystals, with a pearly luster, were noted in vugs of the massive mineral." Schooner (1961). Associated with triphylite, siderite, strunzite, laueite, mitridatite, ludlamite, vivianite.
A green mineral thought to be beraunite was tested by XRD (with some matrix) at the National Museum Prague (dr. Jiri Sejkora) and found to be "no beraunite but something similar to messelite". The green may be only a coating. |
| ⓘ Microcline Formula: K(AlSi3O8) Localities: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reference provides no details, but a component in local pegmatites intruding area host rocks. |
| ⓘ Mitridatite Formula: Ca2Fe3+3(PO4)3O2 · 3H2O Habit: coatings Colour: green Description: Associated with triphylite, diadochite, messelite, siderite, strunzite, hydroxylapatite, ludlamite, vivianite in altered tryphilite masses. |
| ⓘ Moraesite ? Formula: Be2(PO4)(OH) · 4H2O Habit: coating Colour: white Description: "Very scanty fibrous white coatings were seen along cracks in beryl, associated with herderite, from near a triphylite body" (Schooner 1961) |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Localities: Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA References: |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Nickeline Formula: NiAs Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: grains Colour: bronze Description: Reported by Schairer (1931) "Found in mica schist", confirmed by Chomiak (1989). Associated with waxy, pale apple green annabergite. |
| ⓘ Formula: (Ni,Co,Fe)As3 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Habit: grains Description: "Shepard [1837] initially identified the Co-Ni bearing arsenide as the cubic di-arsenide, smaltite but after obtaining and studying additional material from his own mine he pronounced it to be a new orthorhombic tri-arsenide for which he proposed the name "Chathamite"....In the mid 1850s Genth (in Goodrich, 1854) questioned Shepard's identification and suggested that Chathamite was simply an iron rich variety of the cubic arsenide chloanthite (a misconception that perpetuated up to, and including, the 7th edition of Dana's Manual of Mineralogy). As it turns out, Shepard's Chathamite is indeed orthorhombic, but today would be classified as a nickel-cobalt rich loellingite." Gray (2005) |
| ⓘ Opal Formula: SiO2 · nH2O |
| ⓘ Opal var. Opal-AN Formula: SiO2 · nH2O |
| ⓘ Formula: K(AlSi3O8) Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Description: Reference provides no details, but "orthoclase" used in early references for what has later proven to be microcline in metamorphic rocks and pegmatites in Connecticut. |
| ⓘ Formula: (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 Locality: State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Colour: colorless Description: "A colorless acicular mineral, found by the author in a vug of messelite, at the State Forest Mine in East Hampton, does not fit the description of any typical species except palermoite. Unfortunately, very little was obtained; an excellent sample was sent away for testing, but was evidently lost" (Schooner 1961). Most likely, this was a very poor guess. |
| ⓘ Phosphophyllite Formula: Zn2Fe(PO4)2 · 4H2O Colour: green Description: "occurs as a hydrothermal alteration of sphalerite and triphylite, in vugs of messelite, with vivianite, at the State Forest Mine in East Hampton. Very few specimens have been found, and they are small; the crystals are green and quite glassy, the largest being about an eighth of an inch in diameter. The author suspected the identity of this material from the time he discovered it, several years ago, but it was not confirmed until recently. Some of the optical data follows: R. I. 1.615; optical angle 45 degrees, more or less; optic sign negative; birefringence high." (Schooner 1961) |
| ⓘ Pickeringite Formula: MgAl2(SO4)4 · 22H2O Localities: Description: Reference provides no details, probably a surficial alteration product of the ore minerals. |
| ⓘ Pitticite ? Formula: (Fe, AsO4, H2O) (?) Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reported by Dick Schooner in Januzzi (1976) but no details provided. |
| ⓘ Pyrite Formula: FeS2 Localities: Description: "Pyrrhotite, locally altered to pyrite, is the only other sulfide present in abundance [in the gold-bearing lodes]. Native gold, generally as micron sized grains, is found, along with pyrite and chalcopyrite, in a network of thin fractures and veins cutting the arsenopyrite." Gray (2005) References: |
| ⓘ Formula: Mn4+O2 Localities: Description: A black earthy mineral which has yet to be properly identified. |
| ⓘ Pyrrhotite Formula: Fe1-xS Localities: Habit: grains Description: "Pyrrhotite and loellingite constitute the bulk of the ore minerals [at Shepard's Lode]..."Pyrrhotite, locally altered to pyrite, is the only other sulfide present in abundance [in the gold-bearing lodes]. Native gold, generally as micron sized grains, is found, along with pyrite and chalcopyrite, in a network of thin fractures and veins cutting the arsenopyrite." Gray (2005) References: |
| ⓘ Quartz Formula: SiO2 Localities: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Component or accessory of area host rocks. |
| ⓘ Quartz var. Rose Quartz ? Formula: SiO2 Locality: Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: massive Colour: pink Description: On display at the Joe Webb Peoples museum, attributed to "Cobalt", but as this locality is the only significant pegmatite in the village, it is the likely source. |
| ⓘ Rammelsbergite ? Formula: NiAs2 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reported by Dick Schooner in Januzzi (1976) p. 235, no details provided. |
| ⓘ Rockbridgeite ? Formula: Fe2+Fe3+4(PO4)3(OH)5 Description: reported by Dick Schooner, no details in the reference. |
| ⓘ Roscherite ? Formula: Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O Description: Needs verification because of lack of data. May be greifensteinite described after the reference date. |
| ⓘ Safflorite ? Formula: (Co,Ni,Fe)As2 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reported by Dick Schooner in Januzzi (1976) p. 235, no details provided. |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Localities: Habit: prismatic with rhombohedral terminations Colour: black Description: The quarry below the waterfall at the lower end of Great Hill Lake in Portland, downstream from the dam, was a source of excellent large crystals, with sharp faces (Schooner, 1961). References: |
| ⓘ Scorodite Formula: Fe3+AsO4 · 2H2O Localities: Habit: botryoidal crusts, pyramidal microcrystals Colour: pale-green, violet-pink Description: "in botryoidal crusts that are almost sub-translucent" associated with arsenolite (Januzzi 1976); "Common as pale-green masses resulting from the decomposition of arsenopyrite" (Schairer 1931) Very rare violet-pink microcrystals embedded in matrix. |
| ⓘ Siderite Formula: FeCO3 Localities: Habit: fine-grained granular to cleavable masses Colour: tan Description: Mostly mixed with messelite and associated with triphylite, vivianite, ludlamite, sulfides, mitridatite. Small crystals are rare and generally altered. References: |
| ⓘ Sillimanite ? Formula: Al2(SiO4)O Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: The reference provides no details, but is a common accessory in area metamorphic rocks. |
| ⓘ Formula: CoAs3 Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Description: "Shepard [1837] initially identified the Co-Ni bearing arsenide as the cubic di-arsenide, smaltite but after obtaining and studying additional material from his own mine he pronounced it to be a new orthorhombic tri-arsenide for which he proposed the name "Chathamite"....In the mid 1850s Genth (in Goodrich, 1854) questioned Shepard's identification and suggested that Chathamite was simply an iron rich variety of the cubic arsenide chloanthite (a misconception that perpetuated up to, and including, the 7th edition of Dana's Manual of Mineralogy). As it turns out, Shepard's Chathamite is indeed orthorhombic, but today would be classified as a nickel-cobalt rich loellingite." Gray (2005) |
| ⓘ Formula: ZnCO3 Locality: State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA - erroneously reported Description: speculation by Schooner (1958) |
| ⓘ Sphalerite Formula: ZnS Localities: Habit: grains Description: With the ore minerals at Shepard's Lode. |
| ⓘ Staurolite Formula: Fe2+2Al9Si4O23(OH) Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: prismatic Colour: brown Description: An accessory in the host rock at Robert's Lode, crystals to at least 1.5 cm. |
| ⓘ Strunzite Formula: Mn2+Fe3+2(PO4)2(OH)2 · 6H2O Habit: radiating acicular needles and fibers Colour: golden to yellow-orange Description: "occurs as typical aggregates of golden fibers, associated with [messelite] and siderite, as well as sulfides....The strunzite is rare, and no more than half a dozen specimens have been secured...and none of them could be described as of outstanding quality. The identity of this material was confirmed by Clifford Frondel of Harvard University." (Schooner 1958) Associated with triphylite secondaries. |
| ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Description: Reference provides no details, but probably an accessory in local metamorphic rocks and pegmatites intruding area host rocks. |
| ⓘ Triphylite Formula: LiFe2+PO4 Habit: anhedral cleavable masses Colour: pale gray-green Description: "The first triphylite actually seen in Connecticut was discovered by the author at the State Forest Mine in East Hampton, around 1955. It was first noticed in the dump; a search of the locality soon revealed two small bodies of triphylite in the left hand wall of the open pit, just above the short tunnel. A number of specimens were collected, some being cleavage masses up to four inches wide. Siderite, messelite, ludlamite, and several other typical minerals were intergrown, most of them owing their origin to the hydrothermal alteration of the triphylite. One small crystal was noted." (Schooner 1961) |
| ⓘ Triphylite var. Ferrisicklerite Formula: Li1-x(Fe3+xFe2+1-x)PO4 Description: sparingly with the triphylite |
| ✪ Vivianite Formula: Fe2+Fe2+2(PO4)2 · 8H2O Habit: elongated, terminated prisms and cleavable masses Colour: dark blue Description: "transparent blue vivianite crystals, some spear-shaped, in vugs of messelite and siderite...While the vivianite crystals are small, they are of fine quality." (Schooner 1961) Also as coatings on triphylite and associated with messelite, siderite, mitridatite, strunzite and sulfides. |
| ✪ Whitmoreite Formula: Fe2+Fe3+2(PO4)2(OH)2 · 4H2O Habit: radiating acicular crystals in micro spherical "naval mine" aggregates Colour: golden brown Description: Reported by Dick Schooner, no details in the references. Identified by Van King from posted photographs. |
| ⓘ Wurtzite ? Formula: (Zn,Fe)S Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: crust Colour: bluish-white or greenish-white Description: "as a bluish-white or greenish-white alteration of sphalerite" (Schooner 1958). |
| ⓘ Wurtzite var. Voltzite ? Formula: (Zn,Fe)S Locality: Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA Habit: crust Colour: bluish-white or greenish-white Description: "as a bluish-white or greenish-white alteration of sphalerite" (Schooner 1958). |
| ⓘ Xanthoxenite ? Formula: Ca4Fe3+2(PO4)4(OH)2 · 3H2O Habit: stains Colour: yellow Description: Compared by Schooner to similar material from the Palermo Mines, but unconfirmed here. |
| ⓘ Zircon Formula: Zr(SiO4) Habit: tetragonal bipyramid Colour: brownish gray Fluorescence: yellow Description: tiny crystals in albite |
| ⓘ Zircon var. Cyrtolite Formula: Zr[(SiO4),(OH)4] |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Wurtzite ? | 2.CB.45 | (Zn,Fe)S |
| ⓘ | var. Voltzite ? | 2.CB.45 | (Zn,Fe)S |
| ⓘ | Breithauptite ? | 2.CC.05 | NiSb |
| ⓘ | Nickeline | 2.CC.05 | NiAs |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Rammelsbergite ? | 2.EB.15a | NiAs2 |
| ⓘ | Safflorite ? | 2.EB.15a | (Co,Ni,Fe)As2 |
| ⓘ | Löllingite | 2.EB.15a | FeAs2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | var. Danaite | 2.EB.20 | (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS |
| ⓘ | Gersdorffite | 2.EB.25 | NiAsS |
| ⓘ | Cobaltite ? | 2.EB.25 | CoAsS |
| ⓘ | Nickelskutterudite ? | 2.EC.05 | (Ni,Co,Fe)As3 |
| ⓘ | Skutterudite ? | 2.EC.05 | CoAs3 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| ⓘ | Gahnite | 4.BB.05 | ZnAl2O4 |
| ⓘ | Arsenolite ? | 4.CB.50 | As2O3 |
| ⓘ | Quartz var. Rose Quartz ? | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Opal var. Opal-AN | 4.DA.10 | SiO2 · nH2O |
| ⓘ | 4.DA.10 | SiO2 · nH2O | |
| ⓘ | Pyrolusite ? | 4.DB.05 | Mn4+O2 |
| ⓘ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Smithsonite ? | 5.AB.05 | ZnCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Jarosite ? | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Melanterite | 7.CB.35 | Fe2+(H2O)6SO4 · H2O |
| ⓘ | Pickeringite | 7.CB.85 | MgAl2(SO4)4 · 22H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Heterosite | 8.AB.10 | (Fe3+,Mn3+)PO4 |
| ⓘ | Triphylite | 8.AB.10 | LiFe2+PO4 |
| ⓘ | var. Ferrisicklerite | 8.AB.10 | Li1-x(Fe3+xFe2+1-x)PO4 |
| ⓘ | Herderite ? | 8.BA.10 | CaBe(PO4)F |
| ⓘ | Hydroxylherderite | 8.BA.10 | CaBe(PO4)(OH) |
| ⓘ | Rockbridgeite ? | 8.BC.10 | Fe2+Fe3+4(PO4)3(OH)5 |
| ⓘ | Arrojadite-(KFe) ? | 8.BF.05 | (KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2 |
| ⓘ | Palermoite ? | 8.BH.25 | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| ⓘ | Hydroxylapatite | 8.BN.05 | Ca5(PO4)3(OH) |
| ⓘ | Phosphophyllite | 8.CA.40 | Zn2Fe(PO4)2 · 4H2O |
| ⓘ | Scorodite | 8.CD.10 | Fe3+AsO4 · 2H2O |
| ⓘ | Ludlamite | 8.CD.20 | Fe2+3(PO4)2 · 4H2O |
| ⓘ | Vivianite | 8.CE.40 | Fe2+Fe2+2(PO4)2 · 8H2O |
| ⓘ | Annabergite | 8.CE.40 | Ni3(AsO4)2 · 8H2O |
| ⓘ | Erythrite | 8.CE.40 | Co3(AsO4)2 · 8H2O |
| ⓘ | Messelite | 8.CG.05 | Ca2Fe2+(PO4)2 · 2H2O |
| ⓘ | Moraesite ? | 8.DA.05 | Be2(PO4)(OH) · 4H2O |
| ⓘ | Roscherite ? | 8.DA.10 | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O |
| ⓘ | Diadochite | 8.DB.05 | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| ⓘ | Pitticite ? | 8.DB.05 | (Fe, AsO4, H2O) (?) |
| ⓘ | Whitmoreite | 8.DC.15 | Fe2+Fe3+2(PO4)2(OH)2 · 4H2O |
| ⓘ | Strunzite | 8.DC.25 | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O |
| ⓘ | Beraunite ? | 8.DC.27 | Fe3+6(PO4)4O(OH)4 · 6H2O |
| ⓘ | Laueite | 8.DC.30 | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
| ⓘ | Mitridatite | 8.DH.30 | Ca2Fe3+3(PO4)3O2 · 3H2O |
| ⓘ | Xanthoxenite ? | 8.DH.40 | Ca4Fe3+2(PO4)4(OH)2 · 3H2O |
| ⓘ | Autunite | 8.EB.05 | Ca(UO2)2(PO4)2 · 10-12H2O |
| Group 9 - Silicates | |||
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | var. Cyrtolite | 9.AD.30 | Zr[(SiO4),(OH)4] |
| ⓘ | Sillimanite ? | 9.AF.05 | Al2(SiO4)O |
| ⓘ | Staurolite | 9.AF.30 | Fe2+2Al9Si4O23(OH) |
| ⓘ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Cordierite ? | 9.CJ.10 | (Mg,Fe)2Al3(AlSi5O18) |
| ⓘ | 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 |
| ⓘ | 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 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Orthoclase ? | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| Unclassified | |||
| ⓘ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Almandine-Spessartine Series' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Copiapite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Annabergite | Ni3(AsO4)2 · 8H2O |
| H | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| H | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| H | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| H | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| H | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Diadochite | Fe23+(PO4)(SO4)(OH) · 6H2O |
| H | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| H | ⓘ Goethite | α-Fe3+O(OH) |
| H | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| H | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
| H | ⓘ Hydroxylapatite | Ca5(PO4)3(OH) |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| H | ⓘ Ludlamite | Fe32+(PO4)2 · 4H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| H | ⓘ Messelite | Ca2Fe2+(PO4)2 · 2H2O |
| H | ⓘ Mitridatite | Ca2Fe33+(PO4)3O2 · 3H2O |
| H | ⓘ Moraesite | Be2(PO4)(OH) · 4H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| H | ⓘ Phosphophyllite | Zn2Fe(PO4)2 · 4H2O |
| H | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| H | ⓘ Pitticite | (Fe, AsO4, H2O) (?) |
| H | ⓘ Rockbridgeite | Fe2+Fe43+(PO4)3(OH)5 |
| H | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| H | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| H | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| H | ⓘ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| H | ⓘ Whitmoreite | Fe2+Fe23+(PO4)2(OH)2 · 4H2O |
| H | ⓘ Xanthoxenite | Ca4Fe23+(PO4)4(OH)2 · 3H2O |
| H | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Li | Lithium | |
| Li | ⓘ Triphylite var. Ferrisicklerite | Li1-x(Fex3+Fe2+1-x)PO4 |
| Li | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| Li | ⓘ Triphylite | LiFe2+PO4 |
| Be | Beryllium | |
| Be | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Herderite | CaBe(PO4)F |
| Be | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
| Be | ⓘ Moraesite | Be2(PO4)(OH) · 4H2O |
| Be | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(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 | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Annabergite | Ni3(AsO4)2 · 8H2O |
| O | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| O | ⓘ Anorthite | Ca(Al2Si2O8) |
| O | ⓘ Arsenolite | As2O3 |
| O | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| O | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| O | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Cordierite | (Mg,Fe)2Al3(AlSi5O18) |
| O | ⓘ Diadochite | Fe23+(PO4)(SO4)(OH) · 6H2O |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| O | ⓘ Triphylite var. Ferrisicklerite | Li1-x(Fex3+Fe2+1-x)PO4 |
| O | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Gahnite | ZnAl2O4 |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Herderite | CaBe(PO4)F |
| O | ⓘ Heterosite | (Fe3+,Mn3+)PO4 |
| O | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| O | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
| O | ⓘ Hydroxylapatite | Ca5(PO4)3(OH) |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| O | ⓘ Ludlamite | Fe32+(PO4)2 · 4H2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| O | ⓘ Messelite | Ca2Fe2+(PO4)2 · 2H2O |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Mitridatite | Ca2Fe33+(PO4)3O2 · 3H2O |
| O | ⓘ Moraesite | Be2(PO4)(OH) · 4H2O |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| O | ⓘ Phosphophyllite | Zn2Fe(PO4)2 · 4H2O |
| O | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| O | ⓘ Pitticite | (Fe, AsO4, H2O) (?) |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rockbridgeite | Fe2+Fe43+(PO4)3(OH)5 |
| O | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
| O | ⓘ Quartz var. Rose Quartz | SiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Sillimanite | Al2(SiO4)O |
| O | ⓘ Smithsonite | ZnCO3 |
| O | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| O | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | ⓘ Triphylite | LiFe2+PO4 |
| O | ⓘ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| O | ⓘ Whitmoreite | Fe2+Fe23+(PO4)2(OH)2 · 4H2O |
| O | ⓘ Xanthoxenite | Ca4Fe23+(PO4)4(OH)2 · 3H2O |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| 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 | ⓘ Herderite | CaBe(PO4)F |
| F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| Na | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| 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 | ⓘ Cordierite | (Mg,Fe)2Al3(AlSi5O18) |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Al | ⓘ Anorthite | Ca(Al2Si2O8) |
| Al | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(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 | ⓘ Cordierite | (Mg,Fe)2Al3(AlSi5O18) |
| Al | ⓘ Gahnite | ZnAl2O4 |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| Al | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Sillimanite | Al2(SiO4)O |
| Al | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| 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 | ⓘ Anorthite | Ca(Al2Si2O8) |
| 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 | ⓘ Cordierite | (Mg,Fe)2Al3(AlSi5O18) |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Rose Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Sillimanite | Al2(SiO4)O |
| Si | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| P | Phosphorus | |
| P | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| P | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| P | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| P | ⓘ Diadochite | Fe23+(PO4)(SO4)(OH) · 6H2O |
| P | ⓘ Triphylite var. Ferrisicklerite | Li1-x(Fex3+Fe2+1-x)PO4 |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Herderite | CaBe(PO4)F |
| P | ⓘ Heterosite | (Fe3+,Mn3+)PO4 |
| P | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
| P | ⓘ Hydroxylapatite | Ca5(PO4)3(OH) |
| P | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| P | ⓘ Ludlamite | Fe32+(PO4)2 · 4H2O |
| P | ⓘ Messelite | Ca2Fe2+(PO4)2 · 2H2O |
| P | ⓘ Mitridatite | Ca2Fe33+(PO4)3O2 · 3H2O |
| P | ⓘ Moraesite | Be2(PO4)(OH) · 4H2O |
| P | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| P | ⓘ Phosphophyllite | Zn2Fe(PO4)2 · 4H2O |
| P | ⓘ Rockbridgeite | Fe2+Fe43+(PO4)3(OH)5 |
| P | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
| P | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| P | ⓘ Triphylite | LiFe2+PO4 |
| P | ⓘ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| P | ⓘ Whitmoreite | Fe2+Fe23+(PO4)2(OH)2 · 4H2O |
| P | ⓘ Xanthoxenite | Ca4Fe23+(PO4)4(OH)2 · 3H2O |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Diadochite | Fe23+(PO4)(SO4)(OH) · 6H2O |
| S | ⓘ Galena | PbS |
| S | ⓘ Gersdorffite | NiAsS |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| S | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Wurtzite var. Voltzite | (Zn,Fe)S |
| S | ⓘ Wurtzite | (Zn,Fe)S |
| S | ⓘ Arsenopyrite var. Danaite | (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS |
| Cl | Chlorine | |
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| K | Potassium | |
| K | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| K | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
| Ca | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| Ca | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Herderite | CaBe(PO4)F |
| Ca | ⓘ Hydroxylherderite | CaBe(PO4)(OH) |
| Ca | ⓘ Hydroxylapatite | Ca5(PO4)3(OH) |
| Ca | ⓘ Messelite | Ca2Fe2+(PO4)2 · 2H2O |
| Ca | ⓘ Mitridatite | Ca2Fe33+(PO4)3O2 · 3H2O |
| Ca | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| Ca | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
| Ca | ⓘ Xanthoxenite | Ca4Fe23+(PO4)4(OH)2 · 3H2O |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mn | Manganese | |
| Mn | ⓘ Heterosite | (Fe3+,Mn3+)PO4 |
| Mn | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Mn | ⓘ Roscherite | Ca2Mn52+Be4(PO4)6(OH)4 · 6H2O |
| Mn | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2 |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Beraunite | Fe63+(PO4)4O(OH)4 · 6H2O |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Cordierite | (Mg,Fe)2Al3(AlSi5O18) |
| Fe | ⓘ Diadochite | Fe23+(PO4)(SO4)(OH) · 6H2O |
| Fe | ⓘ Triphylite var. Ferrisicklerite | Li1-x(Fex3+Fe2+1-x)PO4 |
| Fe | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
| Fe | ⓘ Heterosite | (Fe3+,Mn3+)PO4 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Laueite | Mn2+Fe23+(PO4)2(OH)2 · 8H2O |
| Fe | ⓘ Löllingite | FeAs2 |
| Fe | ⓘ Ludlamite | Fe32+(PO4)2 · 4H2O |
| Fe | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| Fe | ⓘ Messelite | Ca2Fe2+(PO4)2 · 2H2O |
| Fe | ⓘ Mitridatite | Ca2Fe33+(PO4)3O2 · 3H2O |
| Fe | ⓘ Nickelskutterudite | (Ni,Co,Fe)As3 |
| Fe | ⓘ Phosphophyllite | Zn2Fe(PO4)2 · 4H2O |
| Fe | ⓘ Pitticite | (Fe, AsO4, H2O) (?) |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Rockbridgeite | Fe2+Fe43+(PO4)3(OH)5 |
| Fe | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Fe | ⓘ Strunzite | Mn2+Fe23+(PO4)2(OH)2 · 6H2O |
| Fe | ⓘ Triphylite | LiFe2+PO4 |
| Fe | ⓘ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| Fe | ⓘ Wurtzite var. Voltzite | (Zn,Fe)S |
| Fe | ⓘ Whitmoreite | Fe2+Fe23+(PO4)2(OH)2 · 4H2O |
| Fe | ⓘ Wurtzite | (Zn,Fe)S |
| Fe | ⓘ Xanthoxenite | Ca4Fe23+(PO4)4(OH)2 · 3H2O |
| Fe | ⓘ Arsenopyrite var. Danaite | (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS |
| Co | Cobalt | |
| Co | ⓘ Cobaltite | CoAsS |
| Co | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Co | ⓘ Nickelskutterudite | (Ni,Co,Fe)As3 |
| Co | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| Co | ⓘ Skutterudite | CoAs3 |
| Co | ⓘ Arsenopyrite var. Danaite | (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS |
| Ni | Nickel | |
| Ni | ⓘ Annabergite | Ni3(AsO4)2 · 8H2O |
| Ni | ⓘ Breithauptite | NiSb |
| Ni | ⓘ Gersdorffite | NiAsS |
| Ni | ⓘ Nickelskutterudite | (Ni,Co,Fe)As3 |
| Ni | ⓘ Nickeline | NiAs |
| Ni | ⓘ Rammelsbergite | NiAs2 |
| Ni | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Gahnite | ZnAl2O4 |
| Zn | ⓘ Phosphophyllite | Zn2Fe(PO4)2 · 4H2O |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Zn | ⓘ Sphalerite | ZnS |
| Zn | ⓘ Wurtzite var. Voltzite | (Zn,Fe)S |
| Zn | ⓘ Wurtzite | (Zn,Fe)S |
| As | Arsenic | |
| As | ⓘ Annabergite | Ni3(AsO4)2 · 8H2O |
| As | ⓘ Arsenolite | As2O3 |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Cobaltite | CoAsS |
| As | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| As | ⓘ Gersdorffite | NiAsS |
| As | ⓘ Löllingite | FeAs2 |
| As | ⓘ Nickelskutterudite | (Ni,Co,Fe)As3 |
| As | ⓘ Nickeline | NiAs |
| As | ⓘ Pitticite | (Fe, AsO4, H2O) (?) |
| As | ⓘ Rammelsbergite | NiAs2 |
| As | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| As | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| As | ⓘ Skutterudite | CoAs3 |
| As | ⓘ Arsenopyrite var. Danaite | (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS |
| Sr | Strontium | |
| Sr | ⓘ Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Nb | Niobium | |
| Nb | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| Sb | Antimony | |
| Sb | ⓘ Breithauptite | NiSb |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| U | Uranium | |
| U | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
Localities in this Region
- Connecticut
- Middlesex County
- East Hampton (Chatham)
- Middlesex County
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Ganderia DomainDomain
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References
