Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield Co., Connecticut, USAi
| Regional Level Types | |
|---|---|
| Old Mine Plaza construction site | Construction Site |
| Long Hill | Hill |
| Trumbull | - not defined - |
| Fairfield Co. | County |
| Connecticut | State |
| USA | Country |
This page kindly sponsored by David L. Busha
Key
Lock Map
| Latitude & Longitude (WGS84): | 41° 17' 27'' North , 73° 13' 50'' West | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Latitude & Longitude (decimal): | 41.29111,-73.23083 | ||||||||||||||||||
| GeoHash: | G#: dr7fvsffj | ||||||||||||||||||
| Locality type: | Construction Site | ||||||||||||||||||
| Köppen climate type: | Cfa : Humid subtropical climate | ||||||||||||||||||
| Nearest Settlements: |
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A well-known construction site locality bordering the NW side of Old Mine Park (Hubbard) Tungsten Mine, both sites have a mineral assemblage unique to the state. The original development as a retail plaza was abandoned and in late 2009 construction began on a Home Depot store that was completed in January 2011.
This locality, like the neighboring Old Mine Park, is underlain by gently dipping amphibolite and marble. The amphibolite (containing magnesio-hornblende) includes layers and boudins of green albite variety oligoclase and quartz and very coarse-grained fan-shaped aggregates of pale greenish-white marialite with sulfides. Excellent specimens of fluorescent scheelite are found in the amphibolite cut along the east edge of the property, especially where it is altered to a pale gray-brown clinozoisite. The marble contains grossular and diopside.
Cross-cutting veins contain the same muscovite-topaz-fluorite var. chlorophane-quartz assemblage found in the surrounding area. Excellent pale to emerald-green beryl crystals are found at the contact of cross-cutting calcite-marialite-clinochlore-fluorite-sulfide veins with the amphibolite, which is metasomatically altered to marialite-phlogopite along the contact. Heitner (1998) indicates the material recovered was beryl, with no mention of emerald. The occurrence of emerald from this locality remains controversial. Analyses of some of the lighter colored crystals show traces of Cr and Fe with typically more Fe, but not many darker colored crystals have been tested.
Light green beryl was also found in small granite pegmatite stringers less than 7 cm wide.
There are many small brittle faults cross-cutting the host rocks and open cavities in the faults contain excellent poker-chip calcite, purple to green fluorite, sulfides, and quartz. One extremely rusty fault breccia with abundant pyrite was exposed near the center of the site.
One word of caution, much rock fill was brought in to grade the site over the years and some collectors unfortunately have contaminated the site with discarded material from other localities. Only minerals found in the host matrix rocks/fault zones should be listed.
Regions containing this locality
| North America Plate | Tectonic Plate |
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Actinolite Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 Reference: Jeremy Zolan (visual ID) |
| ⓘ Albite Formula: Na(AlSi3O8) Habit: Tapered with large rhombic 010 face. Colour: white, pale to medium green to gray-green Description: Mostly as rock forming massive material, though some quite coarse-grained. Rare striated micro-crystals, some in parallel growth, to several cm lining open fissures with gypsum, fluorite, clinochlore. Reference: J. Zolan Collection; Harold Moritz collection. |
ⓘ Albite var: Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] Habit: Tapered with large rhombic 010 face. Colour: white, pale to medium green to gray-green Description: Mostly as white to green rock forming massive material, though some quite coarse-grained. Rare striated micro-crystals, some in parallel growth, to several cm lining open fissures with gypsum, fluorite, clinochlore. Reference: Harold Moritz collection |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 Reference: J. Zolan Collec. |
| ⓘ Annite Formula: KFe2+3(AlSi3O10)(OH)2 Habit: anhedral flakes Colour: black Description: Occurs as a rind along the boundary of bodies of massive, albite-rich bodies formed as an alteration of the hosting amphibolite. Reference: Harold Moritz collection |
ⓘ Aragonite Formula: CaCO3 Reference: David Busha collection |
| ⓘ Aurichalcite Formula: (Zn,Cu)5(CO3)2(OH)6 Reference: David Busha collection |
| ⓘ Axinite-(Fe) Formula: Ca2Fe2+Al2BSi4O15OH Reference: Identified on site |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 Reference: J. Zolan Collec. |
| ⓘ Bavenite Formula: Ca4Be2Al2Si9O26(OH)2 Habit: fine needles Colour: white Description: Micro crystals lining fractures with fluorite, albite, clinchlore, gypsum. Reference: Dr. Wilfred Talbot collection. |
| Beryl Formula: Be3Al2(Si6O18) Colour: light green (emerald) Description: Small, but very clear light green beryl found in limestone (calcite) pods in black schist. Color possibly caused by iron(?) impurities. Dissolve the crystals out of the matrix with dilute HCl. Reference: J. Zolan Collec. |
| ⓘ Beryl var: Emerald ? Formula: Be3Al2(Si6O18) Description: Claims have been made that this locality has had an analysis showing a chromium value, but no published analyses. Crystals are really very pale and the term "emerald" is probably exaggerated. |
| ⓘ Bismuth Formula: Bi Reference: Personally collected by David Busha 6/95 |
| ⓘ Bismuthinite Formula: Bi2S3 Reference: Personally collected by David Busha 8/19/95 |
ⓘ Bismutite Formula: (BiO)2CO3 Reference: David Busha collection |
| ⓘ Bornite ? Formula: Cu5FeS4 Reference: J. Zolan Collec. |
| Calcite Formula: CaCO3 Habit: hexagonal prisms, trigonal tabular overgrown around a tiny central rhomb, scalenohedral Colour: white to creamy Fluorescence: orange-red, pink Description: Many occurrences - as massive vein filling with green fluorite, clinchlore, gypsum, sulfides, beryl, phlogopite; as discrete crystals (red-orange-fluorescing) that look like little trigonal discs piled in fractures in amphibolite with pyrite and purple fluorite; as dogteeth filling little pockets in brecciated marble - these are creamy colored and fluoresce pink. Reference: J. Zolan Collection; Harold Moritz collection |
| ⓘ Chalcopyrite Formula: CuFeS2 Reference: J. Zolan Collec. |
| Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Habit: hemispherical aggregates of tabular crystals Colour: dark green to black Reference: P Cristofono collection, 2008 |
ⓘ Clinozoisite Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH) Habit: elongated prismatic Colour: clove brown Description: Typically part of the altered amphibolite assemblage hosting scheelite - with quartz, calcite, marialite, actinolite. Reference: Harold Moritz collection |
ⓘ Cobaltite Formula: CoAsS Habit: grains Description: Silvery grains in cross-cutting calcite veins. Reference: Dave Busha collection |
| ⓘ Cuprite Formula: Cu2O Reference: J. Zolan Collec. |
ⓘ Devilline Formula: CaCu4(SO4)2(OH)6 · 3H2O Reference: David Busha collection SEM_EDS by Kaygeedee Minerals |
ⓘ Diopside Formula: CaMgSi2O6 Reference: Identified on-site |
ⓘ Dolomite Formula: CaMg(CO3)2 Reference: David Busha collection |
| ⓘ Epidote Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) Reference: J. Zolan Collec. |
| ⓘ Epsomite ? Formula: MgSO4 · 7H2O Reference: Jeremy Zolan; David Busha collection |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O Habit: secondary encrustation Colour: lavender Description: Secondary crust on cobaltite grains in cross-cutting calcite veins. Reference: Dave Busha collection |
| ⓘ Ferberite Formula: FeWO4 Habit: Tabular micro-crystals Colour: metallic black Description: Not as pseudomorphs after scheelite, but as original tabular micro-crystals. Confirmed ferberite pseudomorphs after scheelite are restricted to the adjacent Old Mine Park locality. Reference: Dave Busha collection. |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F Reference: David Busha collection |
Fluorite Formula: CaF2 Habit: octahedral Colour: colorless, pale to emerald green, purple Fluorescence: purple Description: Excellent octahedral crystals transparent to translucent, in faults and veins, usually in groups, associated with calcite. Crystals can reach 3.5 cm on an edge. Reference: Numerous private collections |
| ⓘ Fluorite var: Chlorophane Formula: CaF2 Reference: Kevin Czaja Collection |
| ⓘ Galena Formula: PbS Reference: David Busha collection |
| ⓘ Goethite Formula: α-Fe3+O(OH) Habit: botryoidal Colour: brown Description: Botryoidal masses in open spaces of fluorite-calcite-albite-clinochlore-gypsum veins, apparently due to altered iron sulfides. Reference: Harold Moritz collection |
| Grossular Formula: Ca3Al2(SiO4)3 Habit: dodecahedral Colour: cinnamon to clove-brown Description: Accessory in calc-silicate layers in the marble. Well-formed, gemmy crystals to 1.5 cm or so. Reference: P. Cristofono collection; Dave Bodnar collection. |
| ⓘ Gypsum Formula: CaSO4 · 2H2O Habit: cleavable masses Colour: colorless Description: Rarely found in open fissures as etched, transparent cleavable masses associated with fluorite. Reference: J. Zolan collection. Harold Moritz collection. |
| ⓘ Hedenbergite ? Formula: CaFe2+Si2O6 Habit: radiating clusters Colour: Greenish- Black Reference: J. Zolan Collec. |
| ⓘ Heulandite-Ca Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O Reference: 'Heulandite' should be changed to Heulandite- Ca. Inferred from the amount of marble at the site and also there is Stilbite-Ca. David Busha collection |
ⓘ 'Heulandite subgroup' Reference: David Busha collection |
| ⓘ Hübnerite ? Formula: MnWO4 Description: Only confirmed ferberite pseudomorphs after scheelite have ever been found in the area, and only within the adjacent Old Mine Park. Analyses are needed to substantiate this mineral. Reference: J. Zolan Collec. |
| ⓘ Formula: WO3 · 2H2O Description: Dehydrates to tungstite, whose presence outside of neighboring Old Mine Park has not been validated. Reference: Jeremy Zolan |
| ⓘ Hydrozincite Formula: Zn5(CO3)2(OH)6 Reference: David Busha collection |
| ⓘ Ilmenite Formula: Fe2+TiO3 Reference: David Busha collection |
| ⓘ Jarosite Formula: KFe3+ 3(SO4)2(OH)6 Reference: David Busha collection |
| ⓘ 'K Feldspar' Reference: Harold Moritz collection |
| ⓘ 'K Feldspar var: Adularia' Formula: KAlSi3O8 Colour: colorless, white Description: Micro crystals lining small cavities in muscovite-rich topaz vein wall zone with quartz and fluorite. Reference: Harold Moritz collection |
ⓘ Laumontite Formula: CaAl2Si4O12 · 4H2O Habit: prismatic Colour: white Description: Small prisms with stilbite in fractures. Reference: Dave Busha collection |
| ⓘ Lepidocrocite ? Formula: γ-Fe3+O(OH) Reference: J. Zolan Collec. |
| ⓘ 'Limonite' Formula: (Fe,O,OH,H2O) Reference: J. Zolan Collec. |
| ⓘ Linnaeite Formula: Co2+Co3+2S4 Reference: David Busha collection |
ⓘ Magnesio-hornblende Formula: ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 Habit: bladed Colour: very dark green to black Description: The major mineral found in the amphibolite bedrock hosting the scheelite. Reference: Harold Moritz collection |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Reference: J. Zolan Collec. |
ⓘ Malachite Formula: Cu2(CO3)(OH)2 Habit: powdery Colour: green Description: An occasional micromount-sized piece may be found. Reference: J. Zolan Collec. |
ⓘ 'Manganese Oxides' Reference: David S. Bernstein- Feb. 2010 |
ⓘ Marcasite Formula: FeS2 Reference: J. Zolan Collec. |
| ⓘ Margarite Formula: CaAl2(Al2Si2O10)(OH)2 Habit: micaeous to fibrous, compact Colour: white, pale gray Description: Soft but brittle, parallel fibrous zones within quartz-topaz-fluorite-muscovite veins, grades to micaceous to compact granular. Confirmed by Raman spectroscopy (2014) from identical veins as the neighboring Old Mine Park site. Reference: Jeremy Zolan |
| ⓘ 'Margarodite' Description: variety of muscovite found along the contact of cross-cutting quartz-topaz-fluorite-muscovite veins with the host amphibolite. Reference: Jeremy Zolan collection |
| Marialite Formula: Na4Al3Si9O24Cl Habit: radiating acicular Colour: white, pale to dark green Fluorescence: pink to lavender Description: As large radiating acicular masses in the amphibolite associated with microcline, oligoclase, quartz, sulfides and clinochlore. Also along contact zones of the amphibolite with the cross-cutting quartz-topaz-fluorite-muscovite veins associated with phlogopite and beryl. Reference: Harold Moritz collection |
| ⓘ Melanterite Formula: Fe2+(H2O)6SO4 · H2O Reference: Jeremy Zolan |
| ⓘ Microcline Formula: K(AlSi3O8) Reference: Jeremy Zolan |
| ⓘ Milarite Formula: K2Ca4Al2Be4Si24O60 · H2O Reference: Nathan Martin, pers. comm. 2011; http://www.mindat.org/mesg-7-237841.html |
| ⓘ Molybdenite Formula: MoS2 Habit: subhedral hexagonal plates Description: Subhedral 2 cm crystal in quartz hosted by amphibolite. Reference: Dave Busha collection |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Habit: subhedral tabular Colour: silvery Description: Mainly as subparallel crystals in a nearly pure zone along the contact of quartz-topaz-fluorite-muscovite veins with the host amphibolite. Fine to coarse-grained. Not to be confused with the fibrous margarite bands found in contact with the muscovite. Reference: J. Zolan Collec. |
| ⓘ Opal Formula: SiO2 · nH2O Description: Hyalite variety. Fluoresces green. Reference: field trip report, Garnet Gazette, December 2004, p 3. |
| ⓘ Opal var: Opal-AN Formula: SiO2 · nH2O Description: Hyalite variety. Fluoresces green. Reference: field trip report, Garnet Gazette, December 2004, p 3. |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Habit: subhedral tabular, granular Colour: dark brown Description: Found along the contact of cross-cutting hydrothermal calcite veins with the host amphibolite, crystals to 0.5 cm in the calcite, grading to fine-grained in the metasomatized adjacent amphibolite. Associated with scapolite, quartz, clinochlore, sulfides, rarely beryl, fluorite. Rare nice euhedral crystals to 1.5 cm. Reference: Harold Moritz collection |
| ⓘ Pickeringite Formula: MgAl2(SO4)4 · 22H2O Reference: J. Zolan Collec. |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 Reference: David Busha collection |
| ⓘ Pyrite Formula: FeS2 Reference: J. Zolan Collec. |
| ⓘ Formula: Mn4+O2 Description: Visual identification of an unknown mineral. Extremely unlikely. |
| ⓘ Pyrrhotite Formula: Fe7S8 Habit: massive Colour: reddish bronze Description: An accessory in the calcite veins and amphibolite. Reference: P Cristofono collection, 2008 |
| ⓘ Quartz Formula: SiO2 Reference: J. Zolan Collec. |
ⓘ Quartz var: Rutilated Quartz Formula: SiO2 Reference: David Busha collection |
| ⓘ Rosasite Formula: (Cu,Zn)2(CO3)(OH)2 Reference: David Busha collection |
| ⓘ Rozenite Formula: FeSO4 · 4H2O Reference: Jeremy Zolan |
| ⓘ Rutile Formula: TiO2 Reference: David Busha collection |
| 'Scapolite' Habit: radiating acicular Colour: white, pale to dark green Description: A large amount of material was found by Mike Otto in 2010. It was originally thought to be Tremolite but testing of a piece of material collected by David Bernstein ( Testing- Bart Cannon) revealed it to be Scapolite Reference: J. Zolan Collec. |
| Scheelite Formula: Ca(WO4) Colour: White to Honey Yellow Fluorescence: Light Blue Description: Excellent crystals of this scheelite are well-known among New England collectors. Primary Tungsten-bearing mineral from the locality. Occasionally, one may find a Wolframite after Scheelite crystal. Reference: J. Zolan Collec. |
| ⓘ Schorl Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) Reference: J. Zolan Collec. |
| ⓘ Siderite Formula: FeCO3 Reference: J. Zolan Collec. |
| ⓘ Smithsonite Formula: ZnCO3 Reference: David Busha collection |
| ⓘ Sphalerite Formula: ZnS Reference: J. Zolan Collec. |
| ⓘ Stilbite-Ca Formula: NaCa4[Al9Si27O72] · nH2O Habit: radiating aggregates Colour: tan Description: Small aggregates with laumontite in fractures. Reference: Dr. Wilfred Talbot specimens; Dave Busha collection. |
| ⓘ Sulphur Formula: S8 Reference: David Busha collection |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 Habit: massive Colour: light yellow Description: Alteration found along faulted rocks. Reference: Harold Moritz collection |
| ⓘ Titanite Formula: CaTi(SiO4)O Reference: David Busha collection |
| ⓘ Topaz Formula: Al2(SiO4)(F,OH)2 Habit: prismatic with rhombic cross-section Colour: pale brown to yellow to dark green Description: massive to subhedral crystal to several cm, commonly coated with mica, clear euhedral crystals to 1.5 cm Reference: J. Zolan, Harold Moritz, Dave Busha collections |
| ⓘ 'Tourmaline' Formula: A(D3)G6(T6O18)(BO3)3X3Z Reference: P Cristofono collection, 2008 |
| ⓘ Tremolite Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2 Habit: subhedral elongate prismatic Colour: white to colorless Fluorescence: yellow-orange under SW UV Description: Masses of tiny, needle-like crystals Reference: Harold Moritz collection |
| Tungstenite ? Formula: WS2 Colour: Dark-Metallic Description: Very rare microcrystals possibly of this mineral occasionally found in marble. Analyses needed.
This ID is very doubtful given that the only report of tungstenite (a rare alteration of scheelite or ferberite) from the adjacent Old Mine Park by Schairer (1931) (a summary of other information) is almost certainly a misspelling of tungstite. The scheelite (or ferberite) is restricted to the amphibolite and does not occur in the marble. These could be primary ferberite micro-crystals (see photos). Reference: J. Zolan Collec. |
| ⓘ Tungstite ? Formula: WO3 · H2O Description: Valid tungstite has only been reported in specimens from the 19th century that came from ferberite after scheelite pseudomorphs within adjacent Old Mine Park. The mineral occurs as a yellow alteration within the ferberite crystals. Ferberite has not been found outside of Old Mine Park. Reference: J. Zolan Collec. |
| ⓘ Zircon Formula: Zr(SiO4) Reference: Jeremy Zolan |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Bismuth | 1.CA.05 | Bi |
| ⓘ | Sulphur | 1.CC.05 | S8 |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Bismuthinite | 2.DB.05 | Bi2S3 |
| ⓘ | Bornite ? | 2.BA.15 | Cu5FeS4 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Linnaeite | 2.DA.05 | Co2+Co3+2S4 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe7S8 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Tungstenite ? | 2.EA.30 | WS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| ⓘ | var: Chlorophane | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Ferberite | 4.DB.30 | FeWO4 |
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| ⓘ | Hydrotungstite ? | 4.FJ.15 | WO3 · 2H2O |
| ⓘ | Hübnerite ? | 4.DB.30 | MnWO4 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Lepidocrocite ? | 4.FE.15 | γ-Fe3+O(OH) |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | var: Opal-AN | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Pyrolusite ? | 4.DB.05 | Mn4+O2 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var: Rutilated Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Tungstite ? | 4.FJ.10 | WO3 · H2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Aurichalcite | 5.BA.15 | (Zn,Cu)5(CO3)2(OH)6 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Bismutite | 5.BE.25 | (BiO)2CO3 |
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Hydrozincite | 5.BA.15 | Zn5(CO3)2(OH)6 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Rosasite | 5.BA.10 | (Cu,Zn)2(CO3)(OH)2 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Smithsonite | 5.AB.05 | ZnCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Devilline | 7.DD.30 | CaCu4(SO4)2(OH)6 · 3H2O |
| ⓘ | Epsomite ? | 7.CB.40 | MgSO4 · 7H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | 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 |
| ⓘ | Rozenite | 7.CB.15 | FeSO4 · 4H2O |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Erythrite | 8.CE.40 | Co3(AsO4)2 · 8H2O |
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| Group 9 - Silicates | |||
| ⓘ | Actinolite | 9.DE.10 | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var: Oligoclase | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Annite | 9.EC.20 | KFe2+3(AlSi3O10)(OH)2 |
| ⓘ | Axinite-(Fe) | 9.BD.20 | Ca2Fe2+Al2BSi4O15OH |
| ⓘ | Bavenite | 9.DF.25 | Ca4Be2Al2Si9O26(OH)2 |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | var: Emerald ? | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Clinozoisite | 9.BG.05a | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Epidote | 9.BG.05a | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Hedenbergite ? | 9.DA.15 | CaFe2+Si2O6 |
| ⓘ | Heulandite-Ca | 9.GE.05 | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| ⓘ | Laumontite | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| ⓘ | Magnesio-hornblende | 9.DE.10 | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| ⓘ | Margarite | 9.EC.30 | CaAl2(Al2Si2O10)(OH)2 |
| ⓘ | Marialite | 9.FB.15 | Na4Al3Si9O24Cl |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Milarite | 9.CM.05 | K2Ca4Al2Be4Si24O60 · H2O |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Schorl | 9.CK.05 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Stilbite-Ca | 9.GE.10 | NaCa4[Al9Si27O72] · nH2O |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Topaz | 9.AF.35 | Al2(SiO4)(F,OH)2 |
| ⓘ | Tremolite | 9.DE.10 | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Heulandite subgroup' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'var: Adularia' | - | KAlSi3O8 |
| ⓘ | 'Limonite' | - | (Fe,O,OH,H2O) |
| ⓘ | 'Manganese Oxides' | - | |
| ⓘ | 'Margarodite' | - | |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Tourmaline' | - | A(D3)G6(T6O18)(BO3)3X3Z |
List of minerals arranged by Dana 8th Edition classification
| Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
|---|---|---|---|
| Semi-metals and non-metals | |||
| ⓘ | Bismuth | 1.3.1.4 | Bi |
| ⓘ | Sulphur | 1.3.5.1 | S8 |
| Group 2 - SULFIDES | |||
| AmBnXp, with (m+n):p = 3:2 | |||
| ⓘ | Bornite ? | 2.5.2.1 | Cu5FeS4 |
| AmXp, with m:p = 1:1 | |||
| ⓘ | Galena | 2.8.1.1 | PbS |
| ⓘ | Pyrrhotite | 2.8.10.1 | Fe7S8 |
| ⓘ | Sphalerite | 2.8.2.1 | ZnS |
| AmBnXp, with (m+n):p = 1:1 | |||
| ⓘ | Chalcopyrite | 2.9.1.1 | CuFeS2 |
| AmBnXp, with (m+n):p = 3:4 | |||
| ⓘ | Linnaeite | 2.10.1.1 | Co2+Co3+2S4 |
| AmBnXp, with (m+n):p = 2:3 | |||
| ⓘ | Bismuthinite | 2.11.2.3 | Bi2S3 |
| AmBnXp, with (m+n):p = 1:2 | |||
| ⓘ | Cobaltite | 2.12.3.1 | CoAsS |
| ⓘ | Marcasite | 2.12.2.1 | FeS2 |
| ⓘ | Molybdenite | 2.12.10.1 | MoS2 |
| ⓘ | Pyrite | 2.12.1.1 | FeS2 |
| ⓘ | Tungstenite ? | 2.12.10.3 | WS2 |
| Group 4 - SIMPLE OXIDES | |||
| A2X | |||
| ⓘ | Cuprite | 4.1.1.1 | Cu2O |
| A2X3 | |||
| ⓘ | Ilmenite | 4.3.5.1 | Fe2+TiO3 |
| AX2 | |||
| ⓘ | Pyrolusite ? | 4.4.1.4 | Mn4+O2 |
| ⓘ | Rutile | 4.4.1.1 | TiO2 |
| AX3 | |||
| ⓘ | Tungstite ? | 4.5.2.1 | WO3 · H2O |
| Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL | |||
| XO(OH) | |||
| ⓘ | Goethite | 6.1.1.2 | α-Fe3+O(OH) |
| ⓘ | Lepidocrocite ? | 6.1.2.2 | γ-Fe3+O(OH) |
| Group 7 - MULTIPLE OXIDES | |||
| AB2X4 | |||
| ⓘ | Magnetite | 7.2.2.3 | Fe2+Fe3+2O4 |
| Group 9 - NORMAL HALIDES | |||
| AX2 | |||
| ⓘ | Fluorite | 9.2.1.1 | CaF2 |
| Group 14 - ANHYDROUS NORMAL CARBONATES | |||
| A(XO3) | |||
| ⓘ | Calcite | 14.1.1.1 | CaCO3 |
| ⓘ | Siderite | 14.1.1.3 | FeCO3 |
| ⓘ | Smithsonite | 14.1.1.6 | ZnCO3 |
| AB(XO3)2 | |||
| ⓘ | Dolomite | 14.2.1.1 | CaMg(CO3)2 |
| Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN | |||
| ⓘ | Azurite | 16a.2.1.1 | Cu3(CO3)2(OH)2 |
| ⓘ | Bismutite | 16a.3.5.1 | (BiO)2CO3 |
| ⓘ | Malachite | 16a.3.1.1 | Cu2(CO3)(OH)2 |
| ⓘ | Rosasite | 16a.3.1.2 | (Cu,Zn)2(CO3)(OH)2 |
| ⓘ | Aurichalcite | 16a.4.2.1 | (Zn,Cu)5(CO3)2(OH)6 |
| ⓘ | Hydrozincite | 16a.4.1.1 | Zn5(CO3)2(OH)6 |
| Group 29 - HYDRATED ACID AND NORMAL SULFATES | |||
| AXO4·xH2O | |||
| ⓘ | Epsomite ? | 29.6.11.1 | MgSO4 · 7H2O |
| ⓘ | Gypsum | 29.6.3.1 | CaSO4 · 2H2O |
| ⓘ | Melanterite | 29.6.10.1 | Fe2+(H2O)6SO4 · H2O |
| ⓘ | Rozenite | 29.6.6.1 | FeSO4 · 4H2O |
| AB2(XO4)4·H2O | |||
| ⓘ | Pickeringite | 29.7.3.1 | MgAl2(SO4)4 · 22H2O |
| Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN | |||
| (AB)2(XO4)Zq | |||
| ⓘ | Jarosite | 30.2.5.1 | KFe3+ 3(SO4)2(OH)6 |
| Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN | |||
| (AB)5(XO4)2Zq·xH2O | |||
| ⓘ | Devilline | 31.6.1.1 | CaCu4(SO4)2(OH)6 · 3H2O |
| Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES | |||
| A3(XO4)2·xH2O | |||
| ⓘ | Erythrite | 40.3.6.3 | Co3(AsO4)2 · 8H2O |
| Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN | |||
| A5(XO4)3Zq | |||
| ⓘ | Fluorapatite | 41.8.1.1 | Ca5(PO4)3F |
| Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES | |||
| AXO4 | |||
| ⓘ | Ferberite | 48.1.1.2 | FeWO4 |
| ⓘ | Hübnerite ? | 48.1.1.1 | MnWO4 |
| ⓘ | Scheelite | 48.1.2.1 | Ca(WO4) |
| Group 49 - HYDRATED MOLYBDATES AND TUNGSTATES | |||
| Acid Hydrated Molybdates and Tungstates | |||
| ⓘ | Hydrotungstite ? | 49.1.1.1 | WO3 · 2H2O |
| Group 51 - NESOSILICATES Insular SiO4 Groups Only | |||
| Insular SiO4 Groups Only with cations in [6] and >[6] coordination | |||
| ⓘ | Almandine | 51.4.3a.2 | Fe2+3Al2(SiO4)3 |
| ⓘ | Grossular | 51.4.3b.2 | Ca3Al2(SiO4)3 |
| Insular SiO4 Groups Only with cations in >[6] coordination | |||
| ⓘ | Zircon | 51.5.2.1 | Zr(SiO4) |
| Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O | |||
| Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only | |||
| ⓘ | Topaz | 52.3.1.1 | Al2(SiO4)(F,OH)2 |
| Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination | |||
| ⓘ | Titanite | 52.4.3.1 | CaTi(SiO4)O |
| Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O | |||
| Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination | |||
| ⓘ | Axinite-(Fe) | 56.2.2.1 | Ca2Fe2+Al2BSi4O15OH |
| Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups | |||
| Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2) | |||
| ⓘ | Clinozoisite | 58.2.1a.4 | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| ⓘ | Epidote | 58.2.1a.7 | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Group 61 - CYCLOSILICATES Six-Membered Rings | |||
| Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution | |||
| ⓘ | Beryl | 61.1.1.1 | Be3Al2(Si6O18) |
| Six-Membered Rings with borate groups | |||
| ⓘ | Schorl | 61.3.1.10 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Group 63 - CYCLOSILICATES Condensed Rings | |||
| Condensed Rings (Milarite - Osumilite group) | |||
| ⓘ | Milarite | 63.2.1a.12 | K2Ca4Al2Be4Si24O60 · H2O |
| Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1) | |||
| Single-Width Unbranched Chains, W=1 with chains P=2 | |||
| ⓘ | Diopside | 65.1.3a.1 | CaMgSi2O6 |
| ⓘ | Hedenbergite ? | 65.1.3a.2 | CaFe2+Si2O6 |
| Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2) | |||
| Amphiboles - Mg-Fe-Mn-Li subgroup | |||
| ⓘ | Tremolite | 66.1.3a.1 | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| Group 70 - INOSILICATES Column or Tube Structures | |||
| Column or Tube Structures with chains linked by Be | |||
| ⓘ | Bavenite | 70.5.3.1 | Ca4Be2Al2Si9O26(OH)2 |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
| Sheets of 6-membered rings with 2:1 layers | |||
| ⓘ | Annite | 71.2.2b.3 | KFe2+3(AlSi3O10)(OH)2 |
| ⓘ | Margarite | 71.2.2c.1 | CaAl2(Al2Si2O10)(OH)2 |
| ⓘ | Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 71.2.2b.1 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Talc | 71.2.1.3 | Mg3Si4O10(OH)2 |
| Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra | |||
| ⓘ | Clinochlore | 71.4.1.4 | Mg5Al(AlSi3O10)(OH)8 |
| Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings | |||
| Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings | |||
| ⓘ | Prehnite | 72.1.3.1 | Ca2Al2Si3O10(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
| Si Tetrahedral Frameworks - SiO2 with H2O and organics | |||
| ⓘ | Opal | 75.2.1.1 | SiO2 · nH2O |
| Group 76 - TECTOSILICATES Al-Si Framework | |||
| Al-Si Framework with Al-Si frameworks | |||
| ⓘ | Albite | 76.1.3.1 | Na(AlSi3O8) |
| ⓘ | Microcline | 76.1.1.5 | K(AlSi3O8) |
| Al-Si Framework with other Be/Al/Si frameworks | |||
| ⓘ | Marialite | 76.3.1.1 | Na4Al3Si9O24Cl |
| Group 77 - TECTOSILICATES Zeolites | |||
| Zeolite group - True zeolites | |||
| ⓘ | Heulandite-Ca | 77.1.4.1 | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| ⓘ | Laumontite | 77.1.1.4 | CaAl2Si4O12 · 4H2O |
| ⓘ | Stilbite-Ca | 77.1.4.3 | NaCa4[Al9Si27O72] · nH2O |
| Unclassified Minerals, Mixtures, etc. | |||
| ⓘ | Actinolite | - | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| ⓘ | Albite var: Oligoclase | - | (Na,Ca)[Al(Si,Al)Si2O8] |
| ⓘ | Aragonite | - | CaCO3 |
| ⓘ | Beryl var: Emerald ? | - | Be3Al2(Si6O18) |
| ⓘ | Fluorite var: Chlorophane | - | CaF2 |
| ⓘ | 'Heulandite subgroup' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'var: Adularia' | - | KAlSi3O8 |
| ⓘ | 'Limonite' | - | (Fe,O,OH,H2O) |
| ⓘ | Magnesio-hornblende | - | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| ⓘ | 'Manganese Oxides' | - | |
| ⓘ | 'Margarodite' | - | |
| ⓘ | Opal var: Opal-AN | - | SiO2 · nH2O |
| ⓘ | Quartz var: Rutilated Quartz | - | SiO2 |
| ⓘ | 'Scapolite' | - | |
| ⓘ | 'Tourmaline' | - | A(D3)G6(T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| H | ⓘ Stilbite-Ca | NaCa4[Al9Si27O72] · nH2O |
| H | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| H | ⓘ Rozenite | FeSO4 · 4H2O |
| H | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| H | ⓘ Limonite | (Fe,O,OH,H2O) |
| H | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| H | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| H | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| H | ⓘ Opal (var: Opal-AN) | SiO2 · nH2O |
| H | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| H | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
| H | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| H | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| H | ⓘ Clinozoisite | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| H | ⓘ Goethite | α-Fe3+O(OH) |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Magnesio-hornblende | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| H | ⓘ Tremolite | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| H | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| H | ⓘ Tungstite | WO3 · H2O |
| H | ⓘ Epsomite | MgSO4 · 7H2O |
| H | ⓘ Lepidocrocite | γ-Fe3+O(OH) |
| H | ⓘ Hydrotungstite | WO3 · 2H2O |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Be | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| Be | ⓘ Beryl (var: Emerald) | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| B | ⓘ Tourmaline | A(D3)G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| C | ⓘ Bismutite | (BiO)2CO3 |
| C | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| C | ⓘ Smithsonite | ZnCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Marialite | Na4Al3Si9O24Cl |
| O | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| O | ⓘ Stilbite-Ca | NaCa4[Al9Si27O72] · nH2O |
| O | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Rozenite | FeSO4 · 4H2O |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| O | ⓘ Limonite | (Fe,O,OH,H2O) |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Ferberite | FeWO4 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| O | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| O | ⓘ Tourmaline | A(D3)G6(T6O18)(BO3)3X3Z |
| O | ⓘ Opal (var: Opal-AN) | SiO2 · nH2O |
| O | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Albite (var: Oligoclase) | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| O | ⓘ Bismutite | (BiO)2CO3 |
| O | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
| O | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Smithsonite | ZnCO3 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Titanite | CaTi(SiO4)O |
| O | ⓘ Quartz (var: Rutilated Quartz) | SiO2 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| O | ⓘ K Feldspar (var: Adularia) | KAlSi3O8 |
| O | ⓘ Clinozoisite | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Magnesio-hornblende | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| O | ⓘ Tremolite | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| O | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| O | ⓘ Tungstite | WO3 · H2O |
| O | ⓘ Hübnerite | MnWO4 |
| O | ⓘ Hedenbergite | CaFe2+Si2O6 |
| O | ⓘ Beryl (var: Emerald) | Be3Al2(Si6O18) |
| O | ⓘ Epsomite | MgSO4 · 7H2O |
| O | ⓘ Lepidocrocite | γ-Fe3+O(OH) |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Hydrotungstite | WO3 · 2H2O |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| F | ⓘ Fluorite (var: Chlorophane) | CaF2 |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| Na | Sodium | |
| Na | ⓘ Marialite | Na4Al3Si9O24Cl |
| Na | ⓘ Stilbite-Ca | NaCa4[Al9Si27O72] · nH2O |
| Na | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Albite (var: Oligoclase) | (Na,Ca)[Al(Si,Al)Si2O8] |
| Na | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Mg | Magnesium | |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| Mg | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | ⓘ Magnesio-hornblende | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| Mg | ⓘ Tremolite | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| Mg | ⓘ Epsomite | MgSO4 · 7H2O |
| Al | Aluminium | |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Marialite | Na4Al3Si9O24Cl |
| Al | ⓘ Stilbite-Ca | NaCa4[Al9Si27O72] · nH2O |
| Al | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Al | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| Al | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Al | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| Al | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Albite (var: Oligoclase) | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Al | ⓘ K Feldspar (var: Adularia) | KAlSi3O8 |
| Al | ⓘ Clinozoisite | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Magnesio-hornblende | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| Al | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Al | ⓘ Beryl (var: Emerald) | Be3Al2(Si6O18) |
| Si | Silicon | |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Marialite | Na4Al3Si9O24Cl |
| Si | ⓘ Stilbite-Ca | NaCa4[Al9Si27O72] · nH2O |
| Si | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Si | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| Si | ⓘ Opal (var: Opal-AN) | SiO2 · nH2O |
| Si | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Albite (var: Oligoclase) | (Na,Ca)[Al(Si,Al)Si2O8] |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Titanite | CaTi(SiO4)O |
| Si | ⓘ Quartz (var: Rutilated Quartz) | SiO2 |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Si | ⓘ K Feldspar (var: Adularia) | KAlSi3O8 |
| Si | ⓘ Clinozoisite | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Magnesio-hornblende | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| Si | ⓘ Tremolite | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| Si | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Si | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Si | ⓘ Beryl (var: Emerald) | Be3Al2(Si6O18) |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| S | Sulfur | |
| S | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| S | ⓘ Rozenite | FeSO4 · 4H2O |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pickeringite | MgAl2(SO4)4 · 22H2O |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Bismuthinite | Bi2S3 |
| S | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
| S | ⓘ Sulphur | S8 |
| S | ⓘ Linnaeite | Co2+Co23+S4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Pyrrhotite | Fe7S8 |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Tungstenite | WS2 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Epsomite | MgSO4 · 7H2O |
| Cl | Chlorine | |
| Cl | ⓘ Marialite | Na4Al3Si9O24Cl |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| K | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
| K | ⓘ K Feldspar (var: Adularia) | KAlSi3O8 |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Stilbite-Ca | NaCa4[Al9Si27O72] · nH2O |
| Ca | ⓘ Bavenite | Ca4Be2Al2Si9O26(OH)2 |
| Ca | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Ca | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Margarite | CaAl2(Al2Si2O10)(OH)2 |
| Ca | ⓘ Fluorite (var: Chlorophane) | CaF2 |
| Ca | ⓘ Milarite | K2Ca4Al2Be4Si24O60 · H2O |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Albite (var: Oligoclase) | (Na,Ca)[Al(Si,Al)Si2O8] |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Titanite | CaTi(SiO4)O |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| Ca | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Ca | ⓘ Clinozoisite | {Ca2}{Al3}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Magnesio-hornblende | ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2 |
| Ca | ⓘ Tremolite | ☐{Ca2}{Mg5}(Si8O22)(OH)2 |
| Ca | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Ti | Titanium | |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Titanite | CaTi(SiO4)O |
| Mn | Manganese | |
| Mn | ⓘ Hübnerite | MnWO4 |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Melanterite | Fe2+(H2O)6SO4 · H2O |
| Fe | ⓘ Rozenite | FeSO4 · 4H2O |
| Fe | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Limonite | (Fe,O,OH,H2O) |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Ferberite | FeWO4 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Actinolite | ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2 |
| Fe | ⓘ Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
| Fe | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Pyrrhotite | Fe7S8 |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
| Fe | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Fe | ⓘ Hedenbergite | CaFe2+Si2O6 |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Lepidocrocite | γ-Fe3+O(OH) |
| Co | Cobalt | |
| Co | ⓘ Linnaeite | Co2+Co23+S4 |
| Co | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Co | ⓘ Cobaltite | CoAsS |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| Cu | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| Cu | ⓘ Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Zn | ⓘ Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| Zn | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Zn | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| As | Arsenic | |
| As | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| As | ⓘ Cobaltite | CoAsS |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| W | ⓘ Ferberite | FeWO4 |
| W | ⓘ Tungstenite | WS2 |
| W | ⓘ Tungstite | WO3 · H2O |
| W | ⓘ Hübnerite | MnWO4 |
| W | ⓘ Hydrotungstite | WO3 · 2H2O |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Bi | Bismuth | |
| Bi | ⓘ Bismuthinite | Bi2S3 |
| Bi | ⓘ Bismuth | Bi |
| Bi | ⓘ Bismutite | (BiO)2CO3 |
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Silurian 419.2 - 443.8 Ma ID: 2865451 | Basal member [of The Straits Schist] Age: Silurian (419.2 - 443.8 Ma) Stratigraphic Name: The Straits Schist Description: ( = Russell Mountain Formation of Massachusetts) - Distinguished by presence of layers of amphibolite, marble, calc-silicate rock, and quartzite within more uniform schist like that on either side. Minor, unevenly distributed mineralization in W, Bi, Cu, Ni, and other metals. Comments: Part of Central Lowlands; Iapetus (Oceanic) Terrane - Connecticut Valley Synclinorium; Hartland Belt Original map source: Connecticut Geological and Natural History Survey, DEP, in cooperation with the U.S. Geological Survey, 2000, Bedrock Geology of Connecticut, shapefile, scale 1:50,000 Lithology: Major:{schist,amphibolite,marble}, Minor:{calc silicate rock,quartzite} Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133] |
| Ordovician - Neoproterozoic 443.8 - 1000 Ma ID: 3190671 | Precambrian-Phanerozoic sedimentary rocks Age: Neoproterozoic to Ordovician (443.8 - 1000 Ma) Lithology: Mudstone-carbonate-sandstone-conglomerate Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
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Year (asc) Year (desc) Author (A-Z) Author (Z-A)Heitner, Howard I. (1998): Window of Opportunity, Field Collecting at Trumbull, Connecticut - Abstract in Contributed Papers in Specimen Mineralogy, 24th Rochester Mineralogical Symposium. Rocks & Minerals: 73(3): 198.
Garnet Gazette (2004), field trip report (December 2004): 3.
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Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield Co., Connecticut, USA