Log In
U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| U. S. Route 7 Expressway (Danbury line to Iron Works District) | Road Cutting (Inactive) |
| Brookfield | Town |
| Fairfield County | County |
| Connecticut | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
41° 27' 3'' North , 73° 23' 41'' West
Latitude & Longitude (decimal):
Type:
Road Cutting (Inactive) - last checked 2023
Kรถppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| New Fairfield | 14,126 (2017) | 7.7km |
| Danbury | 84,657 (2017) | 8.0km |
| Newtown | 1,967 (2017) | 8.7km |
| Bethel | 9,549 (2017) | 9.0km |
| Putnam Lake | 3,844 (2017) | 12.7km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Danbury Mineralogical Society | Danbury, Connecticut | 8km |
| New Haven Mineral Club | New Haven, Connecticut | 42km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 44km |
| Stamford Mineralogical Society | Stamford, Connecticut | 46km |
| Lapidary and Mineral Society of Central Connecticut | Meriden, Connecticut | 50km |
The expressway section of U. S. Route 7 extending from Interstate 84 in Danbury to exit 12 at U. S. Route 202 in Brookfield was constructed between 1974 and 1976. The section from the Danbury/Brookfield line (from just north of the Agstone Co. marble quarry) to exit 12 at U. S. Route 202 (apparently the "Iron Works district" in Brookfield) traverses mostly sediments along the Still River and not much apparent bedrock. One roadcut is visible on the right of the northbound lanes, about 1 mile south of exit 12. However, Januzzi (1976) and (1994) (who is the only person known to have collected, described, and preserved specimens from here) reports a long list of minerals, many repeated in Weber and Sullivan (1995).
In Januzzi (1994) he shows photos of several minerals from the Iron Works district, apparently from exit 12, then the northern terminus of this stretch of expressway (which has since been extended further north, see https://www.mindat.org/loc-153536.html), where bedrock evidently was encountered. Clarke (1958) shows outcrops in the area of exit 12, mapped as dolomitic marble of the Inwood (now called Cambro-Ordovician Stockbridge) Marble, mixed with "younger granite" (now mapped as Proterozoic granitic gneiss). It is possible some specimens came from blasted rock brought in from elsewhere and used to grade portions of the highway.
Although the identical list of minerals in Januzzi (1976) and (1994) says all the minerals are from the U. S. Route 7 expressway construction, details accompanying photos in Januzzi (1994) indicate some came from pegmatites in the "Iron Works District", some locations "undisclosed". Because no one else has documented the specific localities and minerals, that information has largely been lost with his passing in 2018. That is unfortunate because, as Januzzi (1994) states:
The authorโs research there not only confirms Shepardโs spodumene discovery in the area in 1835 (Shepard, 1837) but also establishes, in the record, a whole series of minerals that have previously not been reported including chrysoberyl, beryl, beryl var. morganite, triphylite, hydroxyfluorapatite, dickinsonite, bertrandite, as well as a number of common species.
Some small specimens attributed to Brookfield and formerly in the Januzzi collection have turned up before he passed away. With his passing more specimens are available for study and are being photographed and posted here.
The coordinates are for the approximate mid-point of this stretch of highway.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| โ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Albite Formula: Na(AlSi3O8) Habit: granular or tabular Colour: white Fluorescence: pale red under SW and MW UV Description: Mostly a rock-forming component of pegmatite both as granular or tabular (cleavelandite) varieties. |
| โ Albite var. Andesine Formula: (Na,Ca)[Al(Si,Al)Si2O8] Description: Included in a list of minerals without details, but plausible for the geology. |
| โ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Almandine Formula: Fe2+3Al2(SiO4)3 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Anatase Formula: TiO2 Habit: bipyramidal Colour: indigo-blue to pale blue Description: "Found as indigo-blue to pale blue micro-crystals intimately associated with quartz, calcite, and feldspar. The matrix appears to be a brecciated quartz rock." Januzzi (1994). At least one very small crystal was found in Ron's collection. |
| โ Anglesite Formula: PbSO4 Description: "Found as an isolated grayish micro-crystal associated with quartz, feldspar, and dolomite. A brown to brownish black tourmaline (dravite?) occurs in the same environment but is not common." Januzzi (1994). |
| โ Aragonite Formula: CaCO3 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Arsenopyrite Formula: FeAsS Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Bertrandite Formula: Be4(Si2O7)(OH)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Beryl Formula: Be3Al2(Si6O18) Habit: elongated prisms Colour: pale yellow-green Description: Subhedral crystals found in pegmatite matrix. |
| โ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Calcite Formula: CaCO3 Colour: white Description: Mostly as a rock-forming mineral in the Stockbridge marble. |
| โ Cerussite Formula: PbCO3 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Chalcopyrite Formula: CuFeS2 Habit: crude tetragonal scalenohedral Colour: golden metallic Description: Microcrystals in Alpine cleft. |
| โ 'Chlorite Group' Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Chondrodite Formula: Mg5(SiO4)2F2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Chrysoberyl Formula: BeAl2O4 Habit: tabular twinned Colour: pale yellow green to bright lemon-yellow Description: "First collected, by the author, at a granite pegmatite in the Iron Works District of Brookfield. The first crystal was about an eighth of an inch in length and bright lemon-yellow in color; this specimen was consumed at Wesleyan University for confirmation purposes. The chrysoberyl pictured is embedded in feldspar and pale yellow green in color." Januzzi (1994). Two specimens from Januzzi's collection were obtained after he passed away and confirm the occurrence. The better crystal is only 2mm. |
| โ Chrysotile Formula: Mg3(Si2O5)(OH)4 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Clinozoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Habit: subhedral elongated prism Colour: pink Description: The pink variety clinothulite (or possibly the zoisite analog thulite) found as small crystals in quartz matrix. |
| โ 'Columbite Group' Habit: tabular Colour: black with iridescence Description: Subhedral crystals in pegmatite matrix. References: |
| โ Datolite Formula: CaB(SiO4)(OH) Habit: tabular wedges Colour: chalky white Description: Microcrystals in Alpine cleft with quartz, adularia, chalcopyrite, laumontite. References: |
| โ Dickinsonite-(KMnNa) Formula: (KNa)(Mn2+◻)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2 Colour: oil-green Description: "A new American locality for the rare phosphate dickinsonite has been discovered at an undisclosed site in Brookfield by Mr. Januzzi. The species occurs in a granite pegmatite as tiny oil-green masses associated with triphylite and vivianite." Januzzi (1994). |
| โ Diopside Formula: CaMgSi2O6 Colour: white-gray Description: "In the iron works district of Brookfield (not at construction site) abundant diopside (white-gray) is found showing excellent parting planes." Januzzi (1994). |
| โ Dolomite Formula: CaMg(CO3)2 Habit: rhombohedral Colour: white Description: Mostly rock forming mineral in the Stockbridge Marble. Microcrystals found with quartz in Alpine clefts. |
| โ Elbaite Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) Habit: anhedral Colour: pink, green, dark green, pink/green/black concentric zones Description: "Photo shows anhedral crystals of pink tourmaline. This discovery, by the author, is of great interest because it has helped to firmly establish the presence of a lithium phase in the pegmatitic intrusions in the Iron Works District of Brookfield." Januzzi (1994). A few macro specimens mostly frozen in matrix were found in his collection. |
| โ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Habit: acicular Colour: gray-green Description: Reference includes photo of crystals. |
| โ Eucryptite Formula: LiAlSiO4 References: |
| โ Fluorapatite Formula: Ca5(PO4)3F Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Forsterite Formula: Mg2(SiO4) Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Galena Formula: PbS Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Greenockite Formula: CdS Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Hematite ? Formula: Fe2O3 Description: Included in a list of minerals without details. |
| โ Hemimorphite ? Formula: Zn4Si2O7(OH)2 · H2O Description: Included in a list of minerals without details. |
| โ Heulandite-Ca Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O Habit: blocky Colour: colorless Description: Microcrystal associated with drusy stilbite in a fracture in amphibolite. References: |
| โ 'Hornblende Root Name Group' Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Hydrozincite ? Formula: Zn5(CO3)2(OH)6 Description: Included in a list of minerals without details. |
| โ Ilmenite Formula: Fe2+TiO3 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ 'K Feldspar' Description: Included in a list of minerals without details. |
| โ 'K Feldspar var. Adularia' Formula: KAlSi3O8 Habit: wedges Colour: cream Description: Microcrystals in Alpine clefts. |
| โ Kyanite Formula: Al2(SiO4)O Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Laumontite Formula: CaAl2Si4O12 · 4H2O Colour: chalky white Description: In Alpine cleft with microcrystalline datolite, quartz, adularia, chalcopyrite. References: |
| โ 'Limonite' Description: ubiquitous |
| โ Lithiophilite Formula: LiMn2+PO4 Habit: massive Colour: grayish pink Description: Massive material in pegmatite matrix. References: |
| โ Magnetite Formula: Fe2+Fe3+2O4 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Meta-autunite Formula: Ca(UO2)2(PO4)2 · 6H2O References: |
| โ Metaswitzerite Formula: Mn2+3(PO4)2 · 4H2O Habit: angular flakes Colour: golden brown Description: Golden brown flakes and angular partial crystal aggregates to 5mm associated with vivianite on quartz, albite, microcline and spodumene matrix. References: |
| โ Microcline Formula: K(AlSi3O8) Habit: blocky anhedral Colour: white Description: Rock forming mineral in pegmatites. |
| โ Molybdenite Formula: MoS2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Description: Accessory in pegmatites. |
| โ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Opal Formula: SiO2 · nH2O Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Opal var. Opal-AN Formula: SiO2 · nH2O Habit: encrustation Colour: brown-stained Fluorescence: bright green under SW UV Description: Coating on quartz from pegmatite. |
| โ Orthoclase Formula: K(AlSi3O8) Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Palygorskite ? Formula: ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O Habit: fibrous Colour: white Description: Included in a list of minerals without details. Most likely this fibrous mineral is actually sepiolite. TEM-EDS analysis of a similar sample from the marble in Danbury proved to be sepiolite. |
| โ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Pyrite Formula: FeS2 Habit: cubic Description: Tiny crystals <1mm associated with triphylite in pegmatite matrix in a small piece formerly in Ron Januzzi collection. |
| โ Pyromorphite Formula: Pb5(PO4)3Cl Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Pyrrhotite Formula: Fe1-xS Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Quartz Formula: SiO2 Habit: elongated prismatic Colour: milky, rose, smoky, clear Description: Mostly rock forming in pegmatite, granite gneiss and quartzite, but small to micro crystals found in Alpine clefts with dolomite or schorl. |
| โ Rutile Formula: TiO2 Habit: equant Colour: black Description: Photo in reference shows crystals from "Kovac's Quarry, Iron Works District, Brookfield, Conn." Januzzi (1994). |
| โ 'Scapolite' Colour: White to pale lilac Description: "White to pale lilac scapolite was found, relatively recently, in numerous small masses distributed in the earth during road construction in the iron works district of Brookfield." Januzzi (1994). |
| โ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Habit: elongated prismatic Colour: black Description: Massive material in pegmatites or in the core of color-zoned elbaite. Micro-crystals in Alpine clefts. |
| โ Sepiolite Formula: Mg4(Si6O15)(OH)2 · 6H2O Habit: fibrous Colour: white Description: Labelled by collector Ronald Januzzi as palygorskite but a similar-looking sample from Danbury https://www.mindat.org/photo-758041.html analyzed via TEM-EDS proved to be sepiolite. |
| โ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Sillimanite Formula: Al2(SiO4)O Description: Included in a list of minerals without details, but plausible for the geology. References: |
| โช Sphalerite Formula: ZnS Habit: tetrahedral, polysynthetically twinned Colour: black, yellow-brown Description: As micro-crystals in voids with clay in a brecciated marble matrix. Crystals show a variety of habits including polysynthetically twinned one similar to those from Thomaston Dam (misidentified as wurtzite). |
| โ Spodumene Formula: LiAlSi2O6 Habit: flat, subhedral prisms Colour: white to pale gray Description: "Spodumene is found in Brookfield, a few rods north of Tomlinson's tavern. It enters in small quantity, into the composition of a feldspathic granite (389) in the form of small nearly transparent, grayish or greenish white individuals, which are with difficulty distinguishable from feldspar." Shepard (1837).
"My recent work in the area did turn up this specimen of spodumene found in the Iron Works District of Brookfield. It appears that granitic magma was intruded into the Inwood marble, with attendant pegmatite development, in certain areas, along the Housatonic Valley this would account for spodumene being listed in these early reports. The author has collected a number of interesting and unusual species in these pegmatites. Shepard reported his spodumene as being a few rods north of the old historic Tomlinsonโs Tavern site in the Iron Works District." Januzzi (1994). Reference includes two photos.
As subhedral "woody" crystals in pegmatite matrix. |
| โ Staurolite Formula: Fe2+2Al9Si4O23(OH) Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Stilbite-Ca Formula: NaCa4(Si27Al9)O72 · 28H2O Habit: tabular Colour: pale yellow Description: Microcrystals in a fracture in amphibolite. References: |
| โ Talc Formula: Mg3Si4O10(OH)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Tantalite-(Mn) Formula: Mn2+Ta2O6 References: |
| โ Titanite Formula: CaTi(SiO4)O Description: Included in a list of minerals without details, but plausible for the geology. |
| โ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z Colour: brown to brownish black Description: "A brown to brownish black tourmaline (dravite?) occurs with quartz, feldspar, and dolomite but is not common....This brown tourmaline could possibly be uvite: chemical analysis needed." Januzzi (1994). |
| โ Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Triphylite Formula: LiFe2+PO4 Habit: massive Colour: grayish green Description: "A new American locality for triphylite has been discovered at an undisclosed site in Brookfield by Mr. Januzzi. The species occurs in a granite pegmatite with tiny oil-green masses of dickinsonite associated with vivianite" Januzzi (1994).
A tiny mass about 5mm with associated even tinier pyrite in pegmatite matrix preserved in a former Januzzi specimen. |
| โ Uraninite Formula: UO2 References: |
| โ Vivianite Formula: Fe2+Fe2+2(PO4)2 · 8H2O Habit: cleaved masses Colour: dark blue Description: "A new American locality for vivianite has been discovered at an undisclosed site in Brookfield by Mr. Januzzi. The species occurs in a granite pegmatite with tiny oil-green masses of dickinsonite associated with triphylite". Januzzi (1994).
Cleaved masses associated with metaswitzerite on quartz, albite, microcline and spodumene matrix. |
| โ Wollastonite Formula: Ca3(Si3O9) Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Zircon Formula: Zr(SiO4) Description: Included in a list of minerals without details, but plausible for the geology. |
| โ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Colour: pink Description: A pink mass of crystals in quartz could be thulite (or the clinothulite variety of the locally much more common clinozoisite). |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| โ | Sphalerite | 2.CB.05a | ZnS |
| โ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| โ | Greenockite | 2.CB.45 | CdS |
| โ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| โ | Galena | 2.CD.10 | PbS |
| โ | Molybdenite | 2.EA.30 | MoS2 |
| โ | Pyrite | 2.EB.05a | FeS2 |
| โ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| โ | Chrysoberyl | 4.BA.05 | BeAl2O4 |
| โ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| โ | Hematite ? | 4.CB.05 | Fe2O3 |
| โ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| โ | Quartz | 4.DA.05 | SiO2 |
| โ | Opal var. Opal-AN | 4.DA.10 | SiO2 ยท nH2O |
| โ | 4.DA.10 | SiO2 ยท nH2O | |
| โ | Rutile | 4.DB.05 | TiO2 |
| โ | Tantalite-(Mn) | 4.DB.35 | Mn2+Ta2O6 |
| โ | Anatase | 4.DD.05 | TiO2 |
| โ | Uraninite | 4.DL.05 | UO2 |
| Group 5 - Nitrates and Carbonates | |||
| โ | Calcite | 5.AB.05 | CaCO3 |
| โ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| โ | Aragonite | 5.AB.15 | CaCO3 |
| โ | Cerussite | 5.AB.15 | PbCO3 |
| โ | Hydrozincite ? | 5.BA.15 | Zn5(CO3)2(OH)6 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| โ | Anglesite | 7.AD.35 | PbSO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| โ | Lithiophilite | 8.AB.10 | LiMn2+PO4 |
| โ | Triphylite | 8.AB.10 | LiFe2+PO4 |
| โ | Dickinsonite-(KMnNa) | 8.BF.05 | (KNa)(Mn2+โป)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2 |
| โ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| โ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| โ | Metaswitzerite | 8.CE.25 | Mn2+3(PO4)2 ยท 4H2O |
| โ | Vivianite | 8.CE.40 | Fe2+Fe2+2(PO4)2 ยท 8H2O |
| โ | Meta-autunite | 8.EB.10 | Ca(UO2)2(PO4)2 ยท 6H2O |
| Group 9 - Silicates | |||
| โ | Chrysotile | 9.00. | Mg3(Si2O5)(OH)4 |
| โ | Eucryptite | 9.AA.05 | LiAlSiO4 |
| โ | Forsterite | 9.AC.05 | Mg2(SiO4) |
| โ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| โ | Zircon | 9.AD.30 | Zr(SiO4) |
| โ | Sillimanite | 9.AF.05 | Al2(SiO4)O |
| โ | Kyanite | 9.AF.15 | Al2(SiO4)O |
| โ | Staurolite | 9.AF.30 | Fe2+2Al9Si4O23(OH) |
| โ | Chondrodite | 9.AF.45 | Mg5(SiO4)2F2 |
| โ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| โ | Datolite | 9.AJ.20 | CaB(SiO4)(OH) |
| โ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
| โ | Hemimorphite ? | 9.BD.10 | Zn4Si2O7(OH)2 ยท H2O |
| โ | Clinozoisite | 9.BG.05a | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| โ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| โ | Zoisite | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| โ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| โ | Elbaite | 9.CK.05 | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| โ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| โ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| โ | Diopside | 9.DA.15 | CaMgSi2O6 |
| โ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| โ | Actinolite | 9.DE.10 | โปCa2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| โ | Tremolite | 9.DE.10 | โปCa2Mg5(Si8O22)(OH)2 |
| โ | Wollastonite | 9.DG.05 | Ca3(Si3O9) |
| โ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| โ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| โ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| โ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| โ | Palygorskite ? | 9.EE.20 | โปAl2Mg2โป2Si8O20(OH)2(H2O)4 ยท 4H2O |
| โ | Sepiolite | 9.EE.25 | Mg4(Si6O15)(OH)2 ยท 6H2O |
| โ | Microcline | 9.FA.30 | K(AlSi3O8) |
| โ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| โ | Albite | 9.FA.35 | Na(AlSi3O8) |
| โ | var. Andesine | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| โ | Laumontite | 9.GB.10 | CaAl2Si4O12 ยท 4H2O |
| โ | Heulandite-Ca | 9.GE.05 | (Ca,Na)5(Si27Al9)O72 ยท 26H2O |
| โ | Stilbite-Ca | 9.GE.10 | NaCa4(Si27Al9)O72 ยท 28H2O |
| Unclassified | |||
| โ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| โ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| โ | 'Chlorite Group' | - | |
| โ | 'Limonite' | - | |
| โ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| โ | 'Scapolite' | - | |
| โ | 'Hornblende Root Name Group' | - | โปCa2(C2+4C3+)(AlSi7O22)W2 |
| โ | 'K Feldspar' | - | |
| โ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
| โ | 'Columbite Group' | - | |
| โ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | โ Bertrandite | Be4(Si2O7)(OH)2 |
| H | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | โ Chrysotile | Mg3(Si2O5)(OH)4 |
| H | โ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| H | โ Datolite | CaB(SiO4)(OH) |
| H | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | โ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | โ Opal var. Opal-AN | SiO2 · nH2O |
| H | โ Hydrozincite | Zn5(CO3)2(OH)6 |
| H | โ Laumontite | CaAl2Si4O12 · 4H2O |
| H | โ Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| H | โ Metaswitzerite | Mn32+(PO4)2 · 4H2O |
| H | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | โ Opal | SiO2 · nH2O |
| H | โ Palygorskite | ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| H | โ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | โ Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
| H | โ Staurolite | Fe22+Al9Si4O23(OH) |
| H | โ Talc | Mg3Si4O10(OH)2 |
| H | โ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | โ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| H | โ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | โ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| H | โ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| H | โ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | โ Serpentine Subgroup | D3[Si2O5](OH)4 |
| H | โ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Li | Lithium | |
| Li | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Li | โ Eucryptite | LiAlSiO4 |
| Li | โ Lithiophilite | LiMn2+PO4 |
| Li | โ Spodumene | LiAlSi2O6 |
| Li | โ Triphylite | LiFe2+PO4 |
| Be | Beryllium | |
| Be | โ Bertrandite | Be4(Si2O7)(OH)2 |
| Be | โ Beryl | Be3Al2(Si6O18) |
| Be | โ Chrysoberyl | BeAl2O4 |
| B | Boron | |
| B | โ Datolite | CaB(SiO4)(OH) |
| B | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | โ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | โ Aragonite | CaCO3 |
| C | โ Calcite | CaCO3 |
| C | โ Cerussite | PbCO3 |
| C | โ Dolomite | CaMg(CO3)2 |
| C | โ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | Oxygen | |
| O | โ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | โ K Feldspar var. Adularia | KAlSi3O8 |
| O | โ Albite | Na(AlSi3O8) |
| O | โ Anatase | TiO2 |
| O | โ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | โ Anglesite | PbSO4 |
| O | โ Aragonite | CaCO3 |
| O | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | โ Almandine | Fe32+Al2(SiO4)3 |
| O | โ Bertrandite | Be4(Si2O7)(OH)2 |
| O | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | โ Beryl | Be3Al2(Si6O18) |
| O | โ Calcite | CaCO3 |
| O | โ Cerussite | PbCO3 |
| O | โ Chrysotile | Mg3(Si2O5)(OH)4 |
| O | โ Chondrodite | Mg5(SiO4)2F2 |
| O | โ Chrysoberyl | BeAl2O4 |
| O | โ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| O | โ Diopside | CaMgSi2O6 |
| O | โ Dolomite | CaMg(CO3)2 |
| O | โ Datolite | CaB(SiO4)(OH) |
| O | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | โ Eucryptite | LiAlSiO4 |
| O | โ Fluorapatite | Ca5(PO4)3F |
| O | โ Forsterite | Mg2(SiO4) |
| O | โ Hematite | Fe2O3 |
| O | โ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | โ Opal var. Opal-AN | SiO2 · nH2O |
| O | โ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | โ Ilmenite | Fe2+TiO3 |
| O | โ Kyanite | Al2(SiO4)O |
| O | โ Laumontite | CaAl2Si4O12 · 4H2O |
| O | โ Lithiophilite | LiMn2+PO4 |
| O | โ Tantalite-(Mn) | Mn2+Ta2O6 |
| O | โ Magnetite | Fe2+Fe23+O4 |
| O | โ Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| O | โ Metaswitzerite | Mn32+(PO4)2 · 4H2O |
| O | โ Microcline | K(AlSi3O8) |
| O | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | โ Opal | SiO2 · nH2O |
| O | โ Orthoclase | K(AlSi3O8) |
| O | โ Palygorskite | ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| O | โ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | โ Pyromorphite | Pb5(PO4)3Cl |
| O | โ Quartz | SiO2 |
| O | โ Rutile | TiO2 |
| O | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | โ Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
| O | โ Sillimanite | Al2(SiO4)O |
| O | โ Spodumene | LiAlSi2O6 |
| O | โ Staurolite | Fe22+Al9Si4O23(OH) |
| O | โ Talc | Mg3Si4O10(OH)2 |
| O | โ Titanite | CaTi(SiO4)O |
| O | โ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | โ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | โ Triphylite | LiFe2+PO4 |
| O | โ Uraninite | UO2 |
| O | โ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| O | โ Wollastonite | Ca3(Si3O9) |
| O | โ Zircon | Zr(SiO4) |
| O | โ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | โ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| O | โ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| O | โ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| O | โ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | โ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | โ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| F | Fluorine | |
| F | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | โ Chondrodite | Mg5(SiO4)2F2 |
| F | โ Fluorapatite | Ca5(PO4)3F |
| Na | Sodium | |
| Na | โ Albite | Na(AlSi3O8) |
| Na | โ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| Na | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| Na | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | โ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Na | โ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Mg | Magnesium | |
| Mg | โ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | โ Chrysotile | Mg3(Si2O5)(OH)4 |
| Mg | โ Chondrodite | Mg5(SiO4)2F2 |
| Mg | โ Diopside | CaMgSi2O6 |
| Mg | โ Dolomite | CaMg(CO3)2 |
| Mg | โ Forsterite | Mg2(SiO4) |
| Mg | โ Palygorskite | ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| Mg | โ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | โ Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
| Mg | โ Talc | Mg3Si4O10(OH)2 |
| Mg | โ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | โ K Feldspar var. Adularia | KAlSi3O8 |
| Al | โ Albite | Na(AlSi3O8) |
| Al | โ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | โ Almandine | Fe32+Al2(SiO4)3 |
| Al | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | โ Beryl | Be3Al2(Si6O18) |
| Al | โ Chrysoberyl | BeAl2O4 |
| Al | โ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| Al | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | โ Eucryptite | LiAlSiO4 |
| Al | โ Kyanite | Al2(SiO4)O |
| Al | โ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | โ Microcline | K(AlSi3O8) |
| Al | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | โ Orthoclase | K(AlSi3O8) |
| Al | โ Palygorskite | ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| Al | โ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | โ Sillimanite | Al2(SiO4)O |
| Al | โ Spodumene | LiAlSi2O6 |
| Al | โ Staurolite | Fe22+Al9Si4O23(OH) |
| Al | โ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | โ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Al | โ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Al | โ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Al | โ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | โ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | โ K Feldspar var. Adularia | KAlSi3O8 |
| Si | โ Albite | Na(AlSi3O8) |
| Si | โ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| Si | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | โ Almandine | Fe32+Al2(SiO4)3 |
| Si | โ Bertrandite | Be4(Si2O7)(OH)2 |
| Si | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | โ Beryl | Be3Al2(Si6O18) |
| Si | โ Chrysotile | Mg3(Si2O5)(OH)4 |
| Si | โ Chondrodite | Mg5(SiO4)2F2 |
| Si | โ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | โ Diopside | CaMgSi2O6 |
| Si | โ Datolite | CaB(SiO4)(OH) |
| Si | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | โ Eucryptite | LiAlSiO4 |
| Si | โ Forsterite | Mg2(SiO4) |
| Si | โ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | โ Opal var. Opal-AN | SiO2 · nH2O |
| Si | โ Kyanite | Al2(SiO4)O |
| Si | โ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | โ Microcline | K(AlSi3O8) |
| Si | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | โ Opal | SiO2 · nH2O |
| Si | โ Orthoclase | K(AlSi3O8) |
| Si | โ Palygorskite | ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O |
| Si | โ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | โ Quartz | SiO2 |
| Si | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | โ Sepiolite | Mg4(Si6O15)(OH)2 · 6H2O |
| Si | โ Sillimanite | Al2(SiO4)O |
| Si | โ Spodumene | LiAlSi2O6 |
| Si | โ Staurolite | Fe22+Al9Si4O23(OH) |
| Si | โ Talc | Mg3Si4O10(OH)2 |
| Si | โ Titanite | CaTi(SiO4)O |
| Si | โ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | โ Wollastonite | Ca3(Si3O9) |
| Si | โ Zircon | Zr(SiO4) |
| Si | โ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | โ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Si | โ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Si | โ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Si | โ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | โ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | โ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| P | โ Fluorapatite | Ca5(PO4)3F |
| P | โ Lithiophilite | LiMn2+PO4 |
| P | โ Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| P | โ Metaswitzerite | Mn32+(PO4)2 · 4H2O |
| P | โ Pyromorphite | Pb5(PO4)3Cl |
| P | โ Triphylite | LiFe2+PO4 |
| P | โ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| S | Sulfur | |
| S | โ Anglesite | PbSO4 |
| S | โ Arsenopyrite | FeAsS |
| S | โ Chalcopyrite | CuFeS2 |
| S | โ Galena | PbS |
| S | โ Greenockite | CdS |
| S | โ Molybdenite | MoS2 |
| S | โ Pyrite | FeS2 |
| S | โ Pyrrhotite | Fe1-xS |
| S | โ Sphalerite | ZnS |
| Cl | Chlorine | |
| Cl | โ Pyromorphite | Pb5(PO4)3Cl |
| K | Potassium | |
| K | โ K Feldspar var. Adularia | KAlSi3O8 |
| K | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| K | โ Microcline | K(AlSi3O8) |
| K | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | โ Orthoclase | K(AlSi3O8) |
| K | โ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | โ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | โ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | โ Albite var. Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
| Ca | โ Aragonite | CaCO3 |
| Ca | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | โ Calcite | CaCO3 |
| Ca | โ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| Ca | โ Diopside | CaMgSi2O6 |
| Ca | โ Dolomite | CaMg(CO3)2 |
| Ca | โ Datolite | CaB(SiO4)(OH) |
| Ca | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | โ Fluorapatite | Ca5(PO4)3F |
| Ca | โ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | โ Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| Ca | โ Titanite | CaTi(SiO4)O |
| Ca | โ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Ca | โ Wollastonite | Ca3(Si3O9) |
| Ca | โ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | โ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Ca | โ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Ca | โ Hornblende Root Name Group | ◻Ca2(C42+C3+)(AlSi7O22)W2 |
| Ti | Titanium | |
| Ti | โ Anatase | TiO2 |
| Ti | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | โ Ilmenite | Fe2+TiO3 |
| Ti | โ Rutile | TiO2 |
| Ti | โ Titanite | CaTi(SiO4)O |
| Mn | Manganese | |
| Mn | โ Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn132+Al(PO4)11(PO4)(OH)2 |
| Mn | โ Lithiophilite | LiMn2+PO4 |
| Mn | โ Tantalite-(Mn) | Mn2+Ta2O6 |
| Mn | โ Metaswitzerite | Mn32+(PO4)2 · 4H2O |
| Fe | Iron | |
| Fe | โ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | โ Arsenopyrite | FeAsS |
| Fe | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | โ Almandine | Fe32+Al2(SiO4)3 |
| Fe | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | โ Chalcopyrite | CuFeS2 |
| Fe | โ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | โ Hematite | Fe2O3 |
| Fe | โ Ilmenite | Fe2+TiO3 |
| Fe | โ Magnetite | Fe2+Fe23+O4 |
| Fe | โ Pyrite | FeS2 |
| Fe | โ Pyrrhotite | Fe1-xS |
| Fe | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | โ Staurolite | Fe22+Al9Si4O23(OH) |
| Fe | โ Triphylite | LiFe2+PO4 |
| Fe | โ Vivianite | Fe2+Fe22+(PO4)2 · 8H2O |
| Cu | Copper | |
| Cu | โ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | โ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | โ Hydrozincite | Zn5(CO3)2(OH)6 |
| Zn | โ Sphalerite | ZnS |
| As | Arsenic | |
| As | โ Arsenopyrite | FeAsS |
| Zr | Zirconium | |
| Zr | โ Zircon | Zr(SiO4) |
| Mo | Molybdenum | |
| Mo | โ Molybdenite | MoS2 |
| Cd | Cadmium | |
| Cd | โ Greenockite | CdS |
| Ta | Tantalum | |
| Ta | โ Tantalite-(Mn) | Mn2+Ta2O6 |
| Pb | Lead | |
| Pb | โ Anglesite | PbSO4 |
| Pb | โ Cerussite | PbCO3 |
| Pb | โ Galena | PbS |
| Pb | โ Pyromorphite | Pb5(PO4)3Cl |
| U | Uranium | |
| U | โ Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| U | โ Uraninite | UO2 |
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA