Slocum prospect, East Hampton, Middlesex County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Slocum prospect | Prospect (Inactive) |
| East Hampton | Town |
| Middlesex County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 31' 55'' North , 72° 28' 15'' West
Latitude & Longitude (decimal):
Type:
Prospect (Inactive) - last checked 2021
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Moodus | 1,413 (2017) | 3.7km |
| East Hampton | 2,691 (2017) | 5.5km |
| Lake Pocotopaug | 3,436 (2017) | 8.1km |
| Higganum | 1,698 (2017) | 8.1km |
| East Haddam | 9,042 (2017) | 8.8km |
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 | 28km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 43km |
| New Haven Mineral Club | New Haven, Connecticut | 46km |
Several excavations surrounding a pegmatite that was operated as a fee collecting site by Robert Gallant in the 1960s, though it was closed in the late 1970s (Albini, 1979). The most complete description is given by Cameron et al (1954):
The property is owned by Edwin Slater, R. F. D., East Hampton. According to local reports, feldspar mining was begun about 1890 by John White. F. A. Slocum later purchased the property and mined feldspar between 1920 and 1922. The prospect was mapped by E. N. Cameron and V. E. Shainin in August 1943…. It is a partly backfilled opencut 90 feet long, 20 feet wide, and 2 to 15 feet deep.
The pegmatite is a lenticular body at least 80 feet long. It ranges from 1 to about 10 feet in thickness and has an average thickness of 8 feet. It strikes N. 70° E. and dips 18°-60° N. In the cliff east of the quarry the pegmatite ends down dip 25 feet from its exposure in the working. Its keel plunges S. 82° W. at a gentle angle. East of the quarry the pegmatite has been completely removed by erosion, but it may extend westward beneath glacial till. East of the cut the beryl-bearing pegmatite truncates an older, barren, pegmatite. The latter consists of quartz, plagioclase, [microcline] perthite, and minor muscovite. The beryl-bearing pegmatite is discordant to thin-bedded mica quartzites whose bedding and foliation strike slightly north of east and dip gently westward.
The pegmatite is distinctly zoned. The border zone is ¼ to 12 inches thick and consists of fine-grained quartz, plagioclase and [microcline] perthite, with accessory garnet, tourmaline, and beryl.
The wall zone, 1.2 to 1.6 feet thick, consists of quartz, [microcline] perthite, and plagioclase, with accessory beryl, black tourmaline, scrap muscovite, and rare biotite and columbite-tantalite. The zone becomes progressively coarser-grained toward the center of the pegmatite. Its inner part is nearly free of beryl.
The outer intermediate zone, 1 to 6 feet thick, consists of coarse-grained white to cream-colored [microcline] perthite and granular quartz. The zone is exposed only at the eastern end of the core where it is an indistinct hood-shaped body between the wall zone and the core.
The core-margin zone, 6 inches to 1 foot thick, consists of granular milky quartz, coarse-grained [microcline] perthite, and subordinate beryl. Quartz and [microcline] perthite are about equal in abundance…
The core is probably 5 to 7 feet thick but only its upper margin is visible. It consists of granular milky quartz and a few scattered [microcline] perthite crystals.
Beryl occurs in the pegmatite in yellow (“golden”), green, and blue euhedral crystals. In the border zone they range in size from 1/32 to 1/2 inch in diameter and from 1/2 inch to 2 1/2 inches long. Crystals as much as 8 inches in length and 1 inch in diameter occur in the core-margin zone.
The pegmatite is a lenticular body at least 80 feet long. It ranges from 1 to about 10 feet in thickness and has an average thickness of 8 feet. It strikes N. 70° E. and dips 18°-60° N. In the cliff east of the quarry the pegmatite ends down dip 25 feet from its exposure in the working. Its keel plunges S. 82° W. at a gentle angle. East of the quarry the pegmatite has been completely removed by erosion, but it may extend westward beneath glacial till. East of the cut the beryl-bearing pegmatite truncates an older, barren, pegmatite. The latter consists of quartz, plagioclase, [microcline] perthite, and minor muscovite. The beryl-bearing pegmatite is discordant to thin-bedded mica quartzites whose bedding and foliation strike slightly north of east and dip gently westward.
The pegmatite is distinctly zoned. The border zone is ¼ to 12 inches thick and consists of fine-grained quartz, plagioclase and [microcline] perthite, with accessory garnet, tourmaline, and beryl.
The wall zone, 1.2 to 1.6 feet thick, consists of quartz, [microcline] perthite, and plagioclase, with accessory beryl, black tourmaline, scrap muscovite, and rare biotite and columbite-tantalite. The zone becomes progressively coarser-grained toward the center of the pegmatite. Its inner part is nearly free of beryl.
The outer intermediate zone, 1 to 6 feet thick, consists of coarse-grained white to cream-colored [microcline] perthite and granular quartz. The zone is exposed only at the eastern end of the core where it is an indistinct hood-shaped body between the wall zone and the core.
The core-margin zone, 6 inches to 1 foot thick, consists of granular milky quartz, coarse-grained [microcline] perthite, and subordinate beryl. Quartz and [microcline] perthite are about equal in abundance…
The core is probably 5 to 7 feet thick but only its upper margin is visible. It consists of granular milky quartz and a few scattered [microcline] perthite crystals.
Beryl occurs in the pegmatite in yellow (“golden”), green, and blue euhedral crystals. In the border zone they range in size from 1/32 to 1/2 inch in diameter and from 1/2 inch to 2 1/2 inches long. Crystals as much as 8 inches in length and 1 inch in diameter occur in the core-margin zone.
There is also a smaller pegmatite exposed in a trench near the top of the hill that produced small but very clear garnet and heliodor. This pegmatite is also exposed on the cliff to the NE where a short adit has been pushed into the core zone revealing more, larger but generally pale yellow-green beryl.
Regarding beryl, Schooner (1958) reports that:
A few years ago, Frank Bibik reopened the Slocum Quarry and worked it sporadically for specimens and gems of golden and greenish beryl. Some superb crystals were obtained at that time. The author has seen one marvelously etched crystal, of a rich greenish-golden color and almost flawless, in the collection of Robert Gallant. It was embedded in clay in a small cavity. The operator also unearthed one of these truly gorgeous crystals.
and:
Magnificent heliodor crystals, completely flawless and beautifully formed, are on display in the Harvard University Museum [http://www.mindat.org/photo-427820.html]. They were collected at the Slocum Quarry in East Hampton by the late Louis W. Little, many years ago. The author used to see these crystals quite often, while the Little collection was still in the area. As he remembers them, some are two or three inches in length and almost an inch in diameter. They have a pure golden-color, with no tint of green.
Schooner (1961) provides an update:
The Slocum quarry, which has been intermittently active in the past few years, has produced many crystals of golden beryl, sharp in form and of the finest gem quality. Indeed, this is one of the principal heliodor sources in North America....Of late, several magnificent specimens of a different type have been recovered. Those are deeply etched, frosty-looking, greenish-golden gem crystals, from cavities along a fault (?) which runs through the lower end of the quarry. The Gallant collection includes a superb crystal, with rounded diamond-shaped etch-pits on virtually every surface. It is over two inches long.
Most beryls frozen in matrix tend to be very elongated and were segmented along basal cleavages before the matrix was fully frozen. Rarely is a complete beryl intact upon removal and the segments are usually capped by "healed" cleavages rather than true pinacoidal faces. True terminations show complete or partial pyramidal forms.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Actinolite ? Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Description: Regarding this mineral, the references consist of a list of minerals with no supporting details. If present, probably in the surrounding host rock, the Hebron Gneiss, which is a calc-silicate rock. |
| ⓘ Albite Formula: Na(AlSi3O8) Colour: pale gray to white Description: Forms a dull gray matrix with accessory greenish-yellow muscovite, white microcline, beryl, and schorl. Much massive material looks surprisingly like white microcline until one finds the polysynthetic twinning striations indicative of albite. |
| ⓘ Albite var. Cleavelandite Formula: Na(AlSi3O8) Habit: platy Colour: white Description: Forms a vuggy albitite associated with bavenite. References: |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 Habit: trapezohedral Colour: ruby red References: |
| ⓘ Annite Formula: KFe2+3(AlSi3O10)(OH)2 Habit: subhedral Colour: black Description: Listed in references as biotite. Accessory in the wall zone. |
| ⓘ Autunite Formula: Ca(UO2)2(PO4)2 · 10-12H2O Fluorescence: green Description: Listed by several sources without details, but plausible for the locality. |
| ✪ Bavenite Formula: Ca4Be2Al2Si9O26(OH)2 Habit: tufts and radiating crystals Colour: white Description: Typically coating beryl References: |
| ⓘ Bertrandite Formula: Be4(Si2O7)(OH)2 Habit: complex euhedral microcrystals Colour: colorless to white Description: Associated with etched beryl. |
| ✪ Beryl Formula: Be3Al2(Si6O18) Habit: elongated prisms with partial or complete pyramidal terminations Colour: yellow, yellow-green, blue Description: "Beryl occurs in the pegmatite in yellow (“golden”), green, and blue euhedral crystals. In the border zone they range in size from 1/32 to 1/34 inch in diameter and from 1/2 inch to 2 1/2 inches long. Crystals as much as 8 inches in length and 1 inch in diameter occur in the core-margin zone." Cameron et al (1954): USGS Prof Paper 255
"many crystals of golden beryl, sharp in form and of the finest gem quality. Indeed, this is one of the principal heliodor sources in North America. The Little collection, at Harvard University, contains some exceptionally fine clear golden crystals; they were obtained from masses of quartz, many years ago. Similar crystals are in various museums and private collections. Of late, several magnificent specimens of a different type have been recovered. Those are deeply etched, frosty-looking, greenish-golden gem crystals, from cavities along a fault (?) which runs through the lower end of the quarry. The Gallant collection includes a superb crystal, with round¬ed diamond-shaped etch-pits on virtually every surface. It is over two inches long." Schooner (1961). |
| ⓘ Beryl var. Aquamarine Formula: Be3Al2Si6O18 Habit: elongated prisms with partial or complete pyramidal terminations Colour: blue Description: "Beryl occurs in the pegmatite in yellow (“golden”), green, and blue euhedral crystals. In the border zone they range in size from 1/32 to 1/34 inch in diameter and from 1/2 inch to 2 1/2 inches long. Crystals as much as 8 inches in length and 1 inch in diameter occur in the core-margin zone." Cameron et al (1954): USGS Prof Paper 255 |
| ✪ Beryl var. Heliodor Formula: Be3Al2(Si6O18) Habit: elongated prisms with partial or complete pyramidal terminations Colour: yellow Description: "Beryl occurs in the pegmatite in yellow (“golden”), green, and blue euhedral crystals. In the border zone they range in size from 1/32 to 1/34 inch in diameter and from 1/2 inch to 2 1/2 inches long. Crystals as much as 8 inches in length and 1 inch in diameter occur in the core-margin zone." Cameron et al (1954): USGS Prof Paper 255;
"many crystals of golden beryl, sharp in form and of the finest gem quality. Indeed, this is one of the principal heliodor sources in North America. The Little collection, at Harvard University, contains some exceptionally fine clear golden crystals; they were obtained from masses of quartz, many years ago. Similar crystals are in various museums and private collections. Of late, several magnificent specimens of a different type have been recovered. Those are deeply etched, frosty-looking, greenish-golden gem crystals, from cavities along a fault (?) which runs through the lower end of the quarry. The Gallant collection includes a superb crystal, with round¬ed diamond-shaped etch-pits on virtually every surface. It is over two inches long." Schooner (1961). |
| ⓘ Bismite Formula: Bi2O3 Habit: encrstation/pseudomorph after bismuthinite Colour: green Description: Alteration product associated with a roughly 1 cm crystalline mass of bismuthinite in albite/schorl matrix with associated bismutite (yellow). References: |
| ⓘ Bismuthinite Formula: Bi2S3 Habit: crystalline mass Colour: gray metallic Description: A roughly 1 cm crystalline mass in albite/schorl matrix with associated bismite (green) and bismutite (yellow) alteration. References: |
| ⓘ Bismutite Formula: (BiO)2CO3 Habit: encrustation/pseudomorph after bismuthinite Colour: yellow Description: Alteration product associated with a roughly 1 cm crystalline mass of bismuthinite in albite/schorl matrix with associated bismite (green). References: |
| ⓘ Columbite-(Fe) Formula: Fe2+Nb2O6 Habit: tabular Colour: black Description: "fine little tabular crystals are occasionally found with beryl" Schooner (1958) References: |
| ⓘ Diopside ? Formula: CaMgSi2O6 Description: Regarding this mineral, the references consist of a list of minerals with no supporting details. If present, probably in the surrounding host rock, the Hebron Gneiss, which is a calc-silicate rock. |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F Colour: pink Fluorescence: yellow Description: "Recently, some delicate pink crystals, with albite and black tourmaline, have been collected" Schooner (1961). Included in lists, including Jones (1960) and probably common in the typical pale green color. |
| ⓘ Fluorite Formula: CaF2 Habit: massive Colour: pale green Description: "Pale green cleavages, unusual in that they phosphoresce after exposure to ordinary light" Schooner (1958) References: |
| ⓘ Fluorite var. Chlorophane Formula: CaF2 Habit: cubic Colour: colorless to rosy Fluorescence: blue-green short-wave UV and thermoluminescence, green phosphorescence, blue-white long-wave UV Description: Found in the pegmatite exposed in the shallow trench in 2016, as tiny, etched crystals in a small pocket or cubic-shaped voids with crumbling fluorite remnants within. References: |
| ⓘ Grossular ? Formula: Ca3Al2(SiO4)3 Description: Regarding this mineral, the references consist of a list of minerals with no supporting details. If present, probably in the surrounding host rock. |
| ⓘ 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series' Habit: acicular Colour: black Description: Elongated, thin crystals in albite/quartz/annite matrix, with unknown translucent, orange-red coating. References: |
| ⓘ 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite' Formula: (Nb,W,Ta,Fe,Mn)2O4 Habit: acicular Colour: black Description: Elongated, thin crystals in albite/quartz/annite matrix, with unknown translucent, orange-red coating. References: |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 Description: Included only in mineral lists with no details but plausible for the locality, presumably clay in pockets. |
| ⓘ Melanterite ? Formula: Fe2+(H2O)6SO4 · H2O Description: Included only in lists with no details. |
| ⓘ Microcline Formula: K(AlSi3O8) Habit: anhedral Colour: white to cream |
| ⓘ 'Microlite Group' Formula: A2-mTa2X6-wZ-n Habit: octahedral Colour: red, yellow, black Description: "Red and yellow octahedra, embedded in columbite-tantalite...a good number of crude black octahedra up to a quarter of an inch across" Schooner (1958) References: |
| ⓘ 'Monazite Group' Formula: REE(PO4) Description: "half inch crystals with cyrtolite and columbite" Schooner (1958) References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Habit: subhedral Colour: greenish yellow Description: Minor accessory in the wall zone, has an interesting greenish yellow color. |
| ⓘ Opal Formula: SiO2 · nH2O Habit: coatings, botryoidal Colour: colorless Fluorescence: green Description: Typically as bright green fluorescing coatings invisible in daylight. "Rarely...this hyalite is of a three-dimensional sort, with a bubbly surface" Schooner (1961) References: |
| ⓘ Opal var. Opal-AN Formula: SiO2 · nH2O Habit: coatings, botryoidal Colour: colorless Fluorescence: green Description: Typically as bright green fluorescing coatings invisible in daylight. "Rarely...this hyalite is of a three-dimensional sort, with a bubbly surface" Schooner (1961) References: |
| ⓘ Pyrite Formula: FeS2 Habit: subhedral grains Description: Small grains in vuggy albitite associated with bavenite. Also probably in the surrounding host rock, the Hebron Gneiss, which is a calc-silicate rock. |
| ⓘ 'Pyrochlore Group' ? Formula: A2Nb2(O,OH)6Z Description: Included (and queried) in mineral lists with no supporting details. |
| ⓘ Pyrrhotite ? Formula: Fe1-xS Description: Regarding this mineral, the references consist of a list of minerals with no supporting details. If present, probably in the surrounding host rock, the Hebron Gneiss, which is a calc-silicate rock. |
| ⓘ Quartz Formula: SiO2 Habit: anhedral, rare prismatic pocket crystals Colour: colorless to smoky Description: The vast majority is rock-forming, though rare pocket crystals have been found. |
| ⓘ Rutile Formula: TiO2 References: |
| ⓘ Rutile var. Strüverite Formula: (Ti,Ta,Fe)O2 References: |
| ⓘ Samarskite-(Y) ? Formula: YFe3+Nb2O8 Description: Included (and queried) in mineral lists with no supporting details. |
| ⓘ 'Scapolite' Habit: acicular Description: "large crystals from the contact between pegmatite and gneiss" and "acicular material" Schooner (1961). The surrounding host rock, the Hebron Gneiss, is a calc-silicate rock. References: |
| ⓘ Scheelite Formula: Ca(WO4) Habit: anhedral grains Colour: white Fluorescence: blue-white under SW Description: Tiny specks identified by their fluorescence, found at the contact between the pegmatite and the host gneiss. References: |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Habit: subhedral Colour: black Description: Very common accessory in the wall zone, some places forming a solid mass of crystals. |
| ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 Description: Peter Cristofono did have 1 garnet analyzed by SEM-EDS with 21 atomic % Mn and 10 atomic % Fe.
|
| ⓘ 'Tantalite' ? Formula: (Mn,Fe)(Ta,Nb)2O6 Description: Referred to in USGS Prof. Paper 255 as part of the columbite-tantalite series. Other references include in only in a list of minerals with no supporting details. |
| ⓘ Tanteuxenite-(Y) Formula: Y(Ta,Nb,Ti)2(O,OH)6 Habit: subhedral grains Colour: dark brown Description: Semi-quantitative data from SEM/EDS analyzed using the method of Ercit (2005). References: |
| ⓘ Titanite Formula: CaTi(SiO4)O Description: "A few very lean examples have been noted" Schooner (1958). Probably in the surrounding host rock, the Hebron Gneiss, which is a calc-silicate rock. |
| ⓘ Tremolite ? Formula: ◻Ca2Mg5(Si8O22)(OH)2 Description: Regarding this mineral, the references consist of a list of minerals with no supporting details. If present, probably in the surrounding host rock, the Hebron Gneiss, which is a calc-silicate rock. |
| ⓘ Uraninite Formula: UO2 Description: Schooner (1958) reports on traces. |
| ⓘ 'Uranmicrolite (of Hogarth 1977)' Formula: (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 Habit: dipyramidal Colour: very dark brown to black Description: Reportedly analyzed by Schooner. Identified by Bruce Jarnot (personal communication 2011) by: 1) euhedral microlite dipyramid crystal form, 2) strong uranium peak in its EDX spectrum, 3) strongly radioactive.
Associations and properties of anhedral grains are similar to that of analyzed tanteuxenite-(Y) and could prove to be this mineral. |
| ⓘ Uranophane ? Formula: Ca(UO2)2(SiO3OH)2 · 5H2O Description: Included only in mineral lists with no supporting details. |
| ⓘ Xenotime-(Y) ? Formula: Y(PO4) |
| ⓘ Zircon Formula: Zr(SiO4) Habit: elongated prismatic Colour: brown Description: Micro crystals <10 cm, probably more common than known due to small, inconspicuous crystals. References: |
| ⓘ Zircon var. Cyrtolite Formula: Zr[(SiO4),(OH)4] Description: Mentioned by Schooner (1958) as "rare" |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrrhotite ? | 2.CC.10 | Fe1-xS |
| ⓘ | Bismuthinite | 2.DB.05 | Bi2S3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite var. Chlorophane | 3.AB.25 | CaF2 |
| ⓘ | 3.AB.25 | CaF2 | |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series' | 4.. | |
| ⓘ | 'var. Wolframoixiolite' | 4.. | (Nb,W,Ta,Fe,Mn)2O4 |
| ⓘ | 'Microlite Group' | 4.00. | A2-mTa2X6-wZ-n |
| ⓘ | 'Pyrochlore Group' ? | 4.00. | A2Nb2(O,OH)6Z |
| ⓘ | Bismite | 4.CB.60 | Bi2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal var. Opal-AN | 4.DA.10 | SiO2 · nH2O |
| ⓘ | 4.DA.10 | SiO2 · nH2O | |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | var. Strüverite | 4.DB.05 | (Ti,Ta,Fe)O2 |
| ⓘ | Samarskite-(Y) ? | 4.DB.25 | YFe3+Nb2O8 |
| ⓘ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
| ⓘ | Tanteuxenite-(Y) | 4.DG.05 | Y(Ta,Nb,Ti)2(O,OH)6 |
| ⓘ | Uraninite | 4.DL.05 | UO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Bismutite | 5.BE.25 | (BiO)2CO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Melanterite ? | 7.CB.35 | Fe2+(H2O)6SO4 · H2O |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Xenotime-(Y) ? | 8.AD.35 | Y(PO4) |
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| ⓘ | 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 |
| ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | var. Cyrtolite | 9.AD.30 | Zr[(SiO4),(OH)4] |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Uranophane ? | 9.AK.15 | Ca(UO2)2(SiO3OH)2 · 5H2O |
| ⓘ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
| ⓘ | Beryl var. Aquamarine | 9.CJ.05 | Be3Al2Si6O18 |
| ⓘ | 9.CJ.05 | Be3Al2(Si6O18) | |
| ⓘ | var. Heliodor | 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 |
| ⓘ | Bavenite | 9.DF.25 | Ca4Be2Al2Si9O26(OH)2 |
| ⓘ | Muscovite | 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) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Tantalite' ? | - | (Mn,Fe)(Ta,Nb)2O6 |
| ⓘ | 'Uranmicrolite (of Hogarth 1977)' | - | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| ⓘ | 'Scapolite' | - | |
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 | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| H | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| H | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| H | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| H | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| H | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| H | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Be | Beryllium | |
| Be | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Be | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Be | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Beryl var. Heliodor | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| C | Carbon | |
| C | ⓘ Bismutite | (BiO)2CO3 |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| O | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| O | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| O | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| O | ⓘ Bismite | Bi2O3 |
| O | ⓘ Bismutite | (BiO)2CO3 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| O | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series | |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| O | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
| O | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| O | ⓘ Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘ Uraninite | UO2 |
| O | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| O | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | ⓘ Xenotime-(Y) | Y(PO4) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Beryl var. Heliodor | Be3Al2(Si6O18) |
| O | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite | (Nb,W,Ta,Fe,Mn)2O4 |
| O | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| F | Fluorine | |
| F | ⓘ Fluorite var. Chlorophane | CaF2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Al | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Al | ⓘ Beryl var. Heliodor | Be3Al2(Si6O18) |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| 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 | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Si | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| 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 | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Beryl var. Heliodor | Be3Al2(Si6O18) |
| Si | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| P | Phosphorus | |
| P | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Xenotime-(Y) | Y(PO4) |
| S | Sulfur | |
| S | ⓘ Bismuthinite | Bi2S3 |
| S | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| K | Potassium | |
| K | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| Ca | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Ca | ⓘ Fluorite var. Chlorophane | CaF2 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Ca | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| Ca | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Ti | Titanium | |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
| Ti | ⓘ Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Mn | Manganese | |
| Mn | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series | |
| Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Mn | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Mn | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite | (Nb,W,Ta,Fe,Mn)2O4 |
| 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 | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| Fe | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series | |
| Fe | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Fe | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
| Fe | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Fe | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite | (Nb,W,Ta,Fe,Mn)2O4 |
| Y | Yttrium | |
| Y | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| Y | ⓘ Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| Y | ⓘ Xenotime-(Y) | Y(PO4) |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Nb | Niobium | |
| Nb | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| Nb | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| Nb | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| Nb | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Nb | ⓘ Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| Nb | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| Nb | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite | (Nb,W,Ta,Fe,Mn)2O4 |
| Ta | Tantalum | |
| Ta | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series | |
| Ta | ⓘ Microlite Group | A2-mTa2X6-wZ-n |
| Ta | ⓘ Rutile var. Strüverite | (Ti,Ta,Fe)O2 |
| Ta | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Ta | ⓘ Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
| Ta | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| Ta | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite | (Nb,W,Ta,Fe,Mn)2O4 |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| W | ⓘ Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series var. Wolframoixiolite | (Nb,W,Ta,Fe,Mn)2O4 |
| Bi | Bismuth | |
| Bi | ⓘ Bismite | Bi2O3 |
| Bi | ⓘ Bismuthinite | Bi2S3 |
| Bi | ⓘ Bismutite | (BiO)2CO3 |
| U | Uranium | |
| U | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| U | ⓘ Uraninite | UO2 |
| U | ⓘ Uranmicrolite (of Hogarth 1977) | (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 |
| U | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ganderia DomainDomain
- GranderiaPassive Margin
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Slocum prospect, East Hampton, Middlesex County, Connecticut, USA