| Regional Level Types | |
|---|---|
| Stillwater County | County |
| Montana | State |
| USA | Country |



| Place | Population |
|---|---|
| Columbus | 2,042(2017) |
| Absarokee | 1,150(2011) |
| Park City | 983(2011) |
| Reed Point | 193(2011) |
| ⓘActinolite Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘAlmandine Formula:Fe2+3Al2(SiO4)3 |
| ⓘAnorthite Formula:Ca(Al2Si2O8) |
| ⓘAnorthite var. Bytownite Formula:(Ca,Na)[Al(Al,Si)Si2O8] |
| ⓘ'Apatite' Formula:Ca5(PO4)3(Cl/F/OH) |
| ⓘArsenopalladinite Formula:Pd8(As,Sb)3 |
| ⓘArsenopyrite Formula:FeAsS |
| ⓘAtokite Formula:(Pd,Pt)3Sn |
| ⓘ'Biotite' Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘBornite Formula:Cu5FeS4 |
| ⓘBraggite Formula:PdPt3S4 Localities: Reported from at least8 localities in this region. |
| ⓘCalcite Formula:CaCO3 |
| ⓘCarrollite Formula:CuCo2S4 |
| ⓘ'Chabazite' References: |
| ⓘChalcopyrite Formula:CuFeS2 Localities: Reported from at least22 localities in this region. |
| ⓘChlorapatite Formula:Ca5(PO4)3Cl |
| ⓘ'Chlorite Group' |
| ⓘChromite Formula:Fe2+Cr3+2O4 Localities: Reported from at least12 localities in this region. |
| ⓘCobaltite Formula:CoAsS |
| ⓘCooperite Formula:PtS Localities: Reported from at least6 localities in this region. |
| ⓘCordierite Formula:Mg2Al4Si5O18 References: |
| ⓘCovellite Formula:CuS |
| ⓘCubanite Formula:CuFe2S3 |
| ⓘCuprite Formula:Cu2O |
| ⓘEnstatite Formula:Mg2Si2O6 Localities: Reported from at least6 localities in this region. |
| ⓘEnstatite var. Bronzite Formula:(Mg,Fe2+)2[SiO3]2 Localities: Reported from at least6 localities in this region. |
| ⓘEpidote Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ'Fayalite-Forsterite Series' Localities: Reported from at least10 localities in this region. |
| ⓘForsterite Formula:Mg2SiO4 References: |
| ⓘGalena Formula:PbS |
| ⓘGersdorffite Formula:NiAsS |
| ⓘGraphite Formula:C |
| ⓘGrossular Formula:Ca3Al2(SiO4)3 References: |
| ⓘHeazlewoodite Formula:Ni3S2 |
| ⓘHematite Formula:Fe2O3 |
| ⓘHercynite Formula:Fe2+Al2O4 |
| ⓘHercynite var. Picotite Formula:(Fe,Mg)(Al,Cr)2O4 |
| ⓘHessite Formula:Ag2Te |
| ⓘHollingworthite Formula:(Rh,Pt,Pd)AsS |
| ⓘ'Hornblende Root Name Group' Formula:◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘIlmenite Formula:Fe2+TiO3 Localities: Reported from at least6 localities in this region. |
| ⓘIsoferroplatinum Formula:Pt3Fe |
| ⓘKeithconnite (TL) Formula:Pd20Te7 Localities: Type Locality:Stillwater Mine, Stillwater County, Montana, USA |
| ⓘKojonenite (TL) Formula:Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) Type Locality: |
| ⓘKotulskite Formula:Pd(Te,Bi)2-x (x ≈ 0.4) Localities: Description: with moncheite |
| ⓘLaurite Formula:RuS2 |
| ⓘMackinawite Formula:FeS |
| ⓘMagnetite Formula:Fe2+Fe3+2O4 Localities: Reported from at least15 localities in this region. |
| ⓘMarcasite Formula:FeS2 |
| ⓘMertieite Formula:Pd8Sb2.5As0.5 |
| ⓘMichenerite Formula:PdBiTe |
| ⓘMillerite Formula:NiS Localities: Reported from at least6 localities in this region. |
| ⓘMoncheite Formula:Pt(Te,Bi)2 Localities: Reported from at least10 localities in this region. |
| ⓘMooihoekite Formula:Cu9Fe9S16 |
| ⓘMuscovite Formula:KAl2(AlSi3O10)(OH)2 References: |
| ⓘMuscovite var. Sericite Formula:KAl2(AlSi3O10)(OH)2 References: |
| ⓘNative Copper Formula:Cu |
| ⓘNative Gold Formula:Au |
| ⓘNative Gold var. Electrum Formula:(Au,Ag) |
| ⓘNative Gold var. Palladium-bearing Gold Formula:(Au,Pd) |
| ⓘNative Palladium Formula:(Pd,Pt) |
| ⓘNative Platinum ? Formula:Pt |
| ⓘNative Rhodium (TL) Formula:(Rh,Pt) Type Locality: |
| ⓘNatrolite Formula:Na2Al2Si3O10 · 2H2O |
| ⓘNickeline Formula:NiAs |
| ⓘNontronite Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘPalarstanide Formula:Pd5(Sn,As)2 |
| ⓘPalladoarsenide Formula:Pd2As |
| ⓘPalladobismutharsenide (TL) Formula:Pd2(As,Bi) Type Locality: References: |
| ⓘPentlandite Formula:(NixFey)Σ9S8 Localities: Reported from at least23 localities in this region. |
| ⓘPhlogopite Formula:KMg3(AlSi3O10)(OH)2 |
| ⓘPigeonite Formula:(CaxMgyFez)(Mgy1Fez1)Si2O6 References: |
| ⓘ'Plagioclase' Formula:(Na,Ca)[(Si,Al)AlSi2]O8 Localities: Reported from at least9 localities in this region. |
| ⓘPlumbopalladinite Formula:Pd3Pb2 |
| ⓘPotarite Formula:PdHg |
| ⓘPyrite Formula:FeS2 Localities: Reported from at least12 localities in this region. |
| ⓘPyrite var. Bravoite Formula:(Fe,Ni)S2 |
| ⓘPyrrhotite Formula:Fe1-xS Localities: Reported from at least23 localities in this region. |
| ⓘRustenburgite Formula:(Pt,Pd)3Sn |
| ⓘRutile Formula:TiO2 References: |
| ⓘ'Serpentine Subgroup' Formula:D3[Si2O5](OH)4 |
| ⓘSperrylite Formula:PtAs2 Localities: Reported from at least7 localities in this region. |
| ⓘSperrylite var. Platarsite Formula:Pt(As,S)2 |
| ⓘSphalerite Formula:ZnS |
| ⓘStannopalladinite Formula:(Pd,Cu)3Sn |
| ⓘStibnite Formula:Sb2S3 |
| ⓘ'Stilbite Subgroup' Formula:M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘStillwaterite (TL) Formula:Pd8As3 Localities: Type Locality:Stillwater Mine, Stillwater County, Montana, USA |
| ⓘTalc Formula:Mg3Si4O10(OH)2 |
| ⓘTelargpalite Formula:(Pd,Ag)3(Te,Bi) References: |
| ⓘTelluropalladinite (TL) Formula:Pd9Te4 Localities: Type Locality:Stillwater Mine, Stillwater County, Montana, USA |
| ⓘTemagamite Formula:Pd3HgTe3 |
| ⓘ'Tetrahedrite Subgroup' Formula:Cu6(Cu4C2+2)Sb4S12S |
| ⓘTitanite Formula:CaTi(SiO4)O |
| ⓘTremolite Formula:◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘTulameenite Formula:Pt2CuFe |
| ⓘ'UM1986-51-S:Re' (FRL) Formula:Re2S3 Type Locality: |
| ⓘViolarite Formula:Fe2+Ni3+2S4 |
| ⓘVysotskite Formula:PdS Localities: Reported from at least9 localities in this region. |
| ⓘZircon Formula:Zr(SiO4) References: |
| ⓘZvyagintsevite Formula:Pd3Pb |
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Gold var. Electrum | 1.AA.05 | (Au,Ag) |
| ⓘ | 1.AA.05 | Au | |
| ⓘ | var. Palladium-bearing Gold | 1.AA.05 | (Au,Pd) |
| ⓘ | Potarite | 1.AD.25 | PdHg |
| ⓘ | Native Palladium | 1.AF.10 | (Pd,Pt) |
| ⓘ | Native Platinum ? | 1.AF.10 | Pt |
| ⓘ | Native Rhodium (TL) | 1.AF.10 | (Rh,Pt) |
| ⓘ | Atokite | 1.AG.10 | (Pd,Pt)3Sn |
| ⓘ | Rustenburgite | 1.AG.10 | (Pt,Pd)3Sn |
| ⓘ | Zvyagintsevite | 1.AG.10 | Pd3Pb |
| ⓘ | Plumbopalladinite | 1.AG.25 | Pd3Pb2 |
| ⓘ | Stannopalladinite | 1.AG.25 | (Pd,Cu)3Sn |
| ⓘ | Isoferroplatinum | 1.AG.35 | Pt3Fe |
| ⓘ | Tulameenite | 1.AG.40 | Pt2CuFe |
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Stillwaterite (TL) | 2.AC.10a | Pd8As3 |
| ⓘ | Mertieite | 2.AC.10b | Pd8Sb2.5As0.5 |
| ⓘ | Arsenopalladinite | 2.AC.10c | Pd8(As,Sb)3 |
| ⓘ | Palarstanide | 2.AC.20b | Pd5(Sn,As)2 |
| ⓘ | Palladoarsenide | 2.AC.25a | Pd2As |
| ⓘ | Palladobismutharsenide (TL) | 2.AC.25f | Pd2(As,Bi) |
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Hessite | 2.BA.60 | Ag2Te |
| ⓘ | Heazlewoodite | 2.BB.05 | Ni3S2 |
| ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
| ⓘ | Keithconnite (TL) | 2.BC.20 | Pd20Te7 |
| ⓘ | Telluropalladinite (TL) | 2.BC.30 | Pd9Te4 |
| ⓘ | Kojonenite (TL) | 2.BC.35 | Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) |
| ⓘ | Telargpalite | 2.BC.45 | (Pd,Ag)3(Te,Bi) |
| ⓘ | Temagamite | 2.BC.50 | Pd3HgTe3 |
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Mooihoekite | 2.CB.10b | Cu9Fe9S16 |
| ⓘ | Cubanite | 2.CB.55a | CuFe2S3 |
| ⓘ | Kotulskite | 2.CC.05 | Pd(Te,Bi)2-x (x ≈ 0.4) |
| ⓘ | Nickeline | 2.CC.05 | NiAs |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Millerite | 2.CC.20 | NiS |
| ⓘ | Mackinawite | 2.CC.25 | FeS |
| ⓘ | Braggite | 2.CC.35a | PdPt3S4 |
| ⓘ | Vysotskite | 2.CC.35a | PdS |
| ⓘ | Cooperite | 2.CC.35b | PtS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Carrollite | 2.DA.05 | CuCo2S4 |
| ⓘ | Violarite | 2.DA.05 | Fe2+Ni3+2S4 |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Moncheite | 2.EA.20 | Pt(Te,Bi)2 |
| ⓘ | Pyrite var. Bravoite | 2.EB.05a | (Fe,Ni)S2 |
| ⓘ | Laurite | 2.EB.05a | RuS2 |
| ⓘ | Sperrylite var. Platarsite | 2.EB.05a | Pt(As,S)2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Sperrylite | 2.EB.05a | PtAs2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| ⓘ | Gersdorffite | 2.EB.25 | NiAsS |
| ⓘ | Hollingworthite | 2.EB.25 | (Rh,Pt,Pd)AsS |
| ⓘ | Michenerite | 2.EB.25 | PdBiTe |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Hercynite | 4.BB.05 | Fe2+Al2O4 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hercynite var. Picotite | 4.BB.05 | (Fe,Mg)(Al,Cr)2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Chlorapatite | 8.BN.05 | Ca5(PO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Cordierite | 9.CJ.10 | Mg2Al4Si5O18 |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | var. Bronzite | 9.DA.05 | (Mg,Fe2+)2[SiO3]2 |
| ⓘ | Pigeonite | 9.DA.10 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Tremolite | 9.DE.10 | ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Nontronite | 9.EC.40 | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| ⓘ | var. Bytownite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
| ⓘ | Natrolite | 9.GA.05 | Na2Al2Si3O10 · 2H2O |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Chabazite' | - | |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'UM1986-51-S:Re' (TL) | - | Re2S3 |
| H | Hydrogen | |
|---|---|---|
| H | ⓘActinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘEpidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘNontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| H | ⓘNatrolite | Na2Al2Si3O10 · 2H2O |
| H | ⓘPhlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘStilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | ⓘTalc | Mg3Si4O10(OH)2 |
| H | ⓘTremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| H | ⓘMuscovite var.Sericite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘSerpentine Subgroup | D3[Si2O5](OH)4 |
| H | ⓘApatite | Ca5(PO4)3(Cl/F/OH) |
| C | Carbon | |
| C | ⓘCalcite | CaCO3 |
| C | ⓘGraphite | C |
| O | Oxygen | |
| O | ⓘActinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘAnorthite | Ca(Al2Si2O8) |
| O | ⓘAlmandine | Fe32+Al2(SiO4)3 |
| O | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘAnorthite var.Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
| O | ⓘCalcite | CaCO3 |
| O | ⓘChlorapatite | Ca5(PO4)3Cl |
| O | ⓘChromite | Fe2+Cr23+O4 |
| O | ⓘCordierite | Mg2Al4Si5O18 |
| O | ⓘCuprite | Cu2O |
| O | ⓘEnstatite | Mg2Si2O6 |
| O | ⓘEpidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘForsterite | Mg2SiO4 |
| O | ⓘGrossular | Ca3Al2(SiO4)3 |
| O | ⓘHematite | Fe2O3 |
| O | ⓘHercynite | Fe2+Al2O4 |
| O | ⓘIlmenite | Fe2+TiO3 |
| O | ⓘMagnetite | Fe2+Fe23+O4 |
| O | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘNontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| O | ⓘNatrolite | Na2Al2Si3O10 · 2H2O |
| O | ⓘPhlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘPigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘRutile | TiO2 |
| O | ⓘStilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | ⓘTalc | Mg3Si4O10(OH)2 |
| O | ⓘTitanite | CaTi(SiO4)O |
| O | ⓘTremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘZircon | Zr(SiO4) |
| O | ⓘEnstatite var.Bronzite | (Mg,Fe2+)2[SiO3]2 |
| O | ⓘFayalite-Forsterite Series | |
| O | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | ⓘMuscovite var.Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘPlagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘHercynite var.Picotite | (Fe,Mg)(Al,Cr)2O4 |
| O | ⓘSerpentine Subgroup | D3[Si2O5](OH)4 |
| O | ⓘApatite | Ca5(PO4)3(Cl/F/OH) |
| F | Fluorine | |
| F | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| F | ⓘApatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | ⓘAnorthite var.Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Na | ⓘNontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Na | ⓘNatrolite | Na2Al2Si3O10 · 2H2O |
| Na | ⓘPlagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘActinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘCordierite | Mg2Al4Si5O18 |
| Mg | ⓘEnstatite | Mg2Si2O6 |
| Mg | ⓘForsterite | Mg2SiO4 |
| Mg | ⓘPhlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘPigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘTalc | Mg3Si4O10(OH)2 |
| Mg | ⓘTremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Mg | ⓘEnstatite var.Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Mg | ⓘFayalite-Forsterite Series | |
| Mg | ⓘHercynite var.Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Al | Aluminium | |
| Al | ⓘAnorthite | Ca(Al2Si2O8) |
| Al | ⓘAlmandine | Fe32+Al2(SiO4)3 |
| Al | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘAnorthite var.Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Al | ⓘCordierite | Mg2Al4Si5O18 |
| Al | ⓘEpidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘGrossular | Ca3Al2(SiO4)3 |
| Al | ⓘHercynite | Fe2+Al2O4 |
| Al | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘNontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Al | ⓘNatrolite | Na2Al2Si3O10 · 2H2O |
| Al | ⓘPhlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘStilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Al | ⓘMuscovite var.Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘPlagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘHercynite var.Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Si | Silicon | |
| Si | ⓘActinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘAnorthite | Ca(Al2Si2O8) |
| Si | ⓘAlmandine | Fe32+Al2(SiO4)3 |
| Si | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘAnorthite var.Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Si | ⓘCordierite | Mg2Al4Si5O18 |
| Si | ⓘEnstatite | Mg2Si2O6 |
| Si | ⓘEpidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘForsterite | Mg2SiO4 |
| Si | ⓘGrossular | Ca3Al2(SiO4)3 |
| Si | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘNontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Si | ⓘNatrolite | Na2Al2Si3O10 · 2H2O |
| Si | ⓘPhlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘPigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘStilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | ⓘTalc | Mg3Si4O10(OH)2 |
| Si | ⓘTitanite | CaTi(SiO4)O |
| Si | ⓘTremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | ⓘZircon | Zr(SiO4) |
| Si | ⓘEnstatite var.Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Si | ⓘFayalite-Forsterite Series | |
| Si | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | ⓘMuscovite var.Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘPlagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘSerpentine Subgroup | D3[Si2O5](OH)4 |
| P | Phosphorus | |
| P | ⓘChlorapatite | Ca5(PO4)3Cl |
| P | ⓘApatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘArsenopyrite | FeAsS |
| S | ⓘBornite | Cu5FeS4 |
| S | ⓘBraggite | PdPt3S4 |
| S | ⓘPyrite var.Bravoite | (Fe,Ni)S2 |
| S | ⓘCarrollite | CuCo2S4 |
| S | ⓘChalcopyrite | CuFeS2 |
| S | ⓘCobaltite | CoAsS |
| S | ⓘCooperite | PtS |
| S | ⓘCovellite | CuS |
| S | ⓘCubanite | CuFe2S3 |
| S | ⓘGalena | PbS |
| S | ⓘGersdorffite | NiAsS |
| S | ⓘHeazlewoodite | Ni3S2 |
| S | ⓘHollingworthite | (Rh,Pt,Pd)AsS |
| S | ⓘLaurite | RuS2 |
| S | ⓘMackinawite | FeS |
| S | ⓘMarcasite | FeS2 |
| S | ⓘMillerite | NiS |
| S | ⓘMooihoekite | Cu9Fe9S16 |
| S | ⓘPentlandite | (NixFey)Σ9S8 |
| S | ⓘSperrylite var.Platarsite | Pt(As,S)2 |
| S | ⓘPyrite | FeS2 |
| S | ⓘPyrrhotite | Fe1-xS |
| S | ⓘSphalerite | ZnS |
| S | ⓘStibnite | Sb2S3 |
| S | ⓘTetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| S | ⓘViolarite | Fe2+Ni23+S4 |
| S | ⓘVysotskite | PdS |
| S | ⓘUM1986-51-S:Re | Re2S3 |
| Cl | Chlorine | |
| Cl | ⓘChlorapatite | Ca5(PO4)3Cl |
| Cl | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Cl | ⓘApatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘPhlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘMuscovite var.Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘActinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘAnorthite | Ca(Al2Si2O8) |
| Ca | ⓘAnorthite var.Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Ca | ⓘCalcite | CaCO3 |
| Ca | ⓘChlorapatite | Ca5(PO4)3Cl |
| Ca | ⓘEpidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘGrossular | Ca3Al2(SiO4)3 |
| Ca | ⓘPigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘTitanite | CaTi(SiO4)O |
| Ca | ⓘTremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Ca | ⓘHornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Ca | ⓘPlagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘApatite | Ca5(PO4)3(Cl/F/OH) |
| Ti | Titanium | |
| Ti | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘIlmenite | Fe2+TiO3 |
| Ti | ⓘRutile | TiO2 |
| Ti | ⓘTitanite | CaTi(SiO4)O |
| Cr | Chromium | |
| Cr | ⓘChromite | Fe2+Cr23+O4 |
| Cr | ⓘHercynite var.Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Fe | Iron | |
| Fe | ⓘActinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘArsenopyrite | FeAsS |
| Fe | ⓘAlmandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘBornite | Cu5FeS4 |
| Fe | ⓘPyrite var.Bravoite | (Fe,Ni)S2 |
| Fe | ⓘChalcopyrite | CuFeS2 |
| Fe | ⓘChromite | Fe2+Cr23+O4 |
| Fe | ⓘCubanite | CuFe2S3 |
| Fe | ⓘEpidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘHematite | Fe2O3 |
| Fe | ⓘHercynite | Fe2+Al2O4 |
| Fe | ⓘIlmenite | Fe2+TiO3 |
| Fe | ⓘIsoferroplatinum | Pt3Fe |
| Fe | ⓘMackinawite | FeS |
| Fe | ⓘMagnetite | Fe2+Fe23+O4 |
| Fe | ⓘMarcasite | FeS2 |
| Fe | ⓘMooihoekite | Cu9Fe9S16 |
| Fe | ⓘNontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Fe | ⓘPentlandite | (NixFey)Σ9S8 |
| Fe | ⓘPigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘPyrite | FeS2 |
| Fe | ⓘPyrrhotite | Fe1-xS |
| Fe | ⓘTulameenite | Pt2CuFe |
| Fe | ⓘViolarite | Fe2+Ni23+S4 |
| Fe | ⓘEnstatite var.Bronzite | (Mg,Fe2+)2[SiO3]2 |
| Fe | ⓘFayalite-Forsterite Series | |
| Fe | ⓘHercynite var.Picotite | (Fe,Mg)(Al,Cr)2O4 |
| Co | Cobalt | |
| Co | ⓘCarrollite | CuCo2S4 |
| Co | ⓘCobaltite | CoAsS |
| Ni | Nickel | |
| Ni | ⓘPyrite var.Bravoite | (Fe,Ni)S2 |
| Ni | ⓘGersdorffite | NiAsS |
| Ni | ⓘHeazlewoodite | Ni3S2 |
| Ni | ⓘMillerite | NiS |
| Ni | ⓘNickeline | NiAs |
| Ni | ⓘPentlandite | (NixFey)Σ9S8 |
| Ni | ⓘViolarite | Fe2+Ni23+S4 |
| Cu | Copper | |
| Cu | ⓘBornite | Cu5FeS4 |
| Cu | ⓘCarrollite | CuCo2S4 |
| Cu | ⓘChalcopyrite | CuFeS2 |
| Cu | ⓘCovellite | CuS |
| Cu | ⓘCubanite | CuFe2S3 |
| Cu | ⓘCuprite | Cu2O |
| Cu | ⓘNative Copper | Cu |
| Cu | ⓘMooihoekite | Cu9Fe9S16 |
| Cu | ⓘStannopalladinite | (Pd,Cu)3Sn |
| Cu | ⓘTetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Cu | ⓘTulameenite | Pt2CuFe |
| Zn | Zinc | |
| Zn | ⓘSphalerite | ZnS |
| As | Arsenic | |
| As | ⓘArsenopalladinite | Pd8(As,Sb)3 |
| As | ⓘArsenopyrite | FeAsS |
| As | ⓘCobaltite | CoAsS |
| As | ⓘGersdorffite | NiAsS |
| As | ⓘHollingworthite | (Rh,Pt,Pd)AsS |
| As | ⓘMertieite | Pd8Sb2.5As0.5 |
| As | ⓘNickeline | NiAs |
| As | ⓘPalarstanide | Pd5(Sn,As)2 |
| As | ⓘPalladoarsenide | Pd2As |
| As | ⓘPalladobismutharsenide | Pd2(As,Bi) |
| As | ⓘSperrylite var.Platarsite | Pt(As,S)2 |
| As | ⓘSperrylite | PtAs2 |
| As | ⓘStillwaterite | Pd8As3 |
| Zr | Zirconium | |
| Zr | ⓘZircon | Zr(SiO4) |
| Ru | Ruthenium | |
| Ru | ⓘLaurite | RuS2 |
| Rh | Rhodium | |
| Rh | ⓘHollingworthite | (Rh,Pt,Pd)AsS |
| Rh | ⓘNative Rhodium | (Rh,Pt) |
| Pd | Palladium | |
| Pd | ⓘArsenopalladinite | Pd8(As,Sb)3 |
| Pd | ⓘAtokite | (Pd,Pt)3Sn |
| Pd | ⓘBraggite | PdPt3S4 |
| Pd | ⓘHollingworthite | (Rh,Pt,Pd)AsS |
| Pd | ⓘKeithconnite | Pd20Te7 |
| Pd | ⓘKotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| Pd | ⓘMertieite | Pd8Sb2.5As0.5 |
| Pd | ⓘMichenerite | PdBiTe |
| Pd | ⓘPalarstanide | Pd5(Sn,As)2 |
| Pd | ⓘNative Palladium | (Pd,Pt) |
| Pd | ⓘPalladoarsenide | Pd2As |
| Pd | ⓘPalladobismutharsenide | Pd2(As,Bi) |
| Pd | ⓘPlumbopalladinite | Pd3Pb2 |
| Pd | ⓘPotarite | PdHg |
| Pd | ⓘRustenburgite | (Pt,Pd)3Sn |
| Pd | ⓘStannopalladinite | (Pd,Cu)3Sn |
| Pd | ⓘStillwaterite | Pd8As3 |
| Pd | ⓘTelluropalladinite | Pd9Te4 |
| Pd | ⓘTelargpalite | (Pd,Ag)3(Te,Bi) |
| Pd | ⓘTemagamite | Pd3HgTe3 |
| Pd | ⓘVysotskite | PdS |
| Pd | ⓘZvyagintsevite | Pd3Pb |
| Pd | ⓘNative Gold var.Palladium-bearing Gold | (Au,Pd) |
| Pd | ⓘKojonenite | Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) |
| Ag | Silver | |
| Ag | ⓘNative Gold var.Electrum | (Au,Ag) |
| Ag | ⓘHessite | Ag2Te |
| Ag | ⓘTelargpalite | (Pd,Ag)3(Te,Bi) |
| Sn | Tin | |
| Sn | ⓘAtokite | (Pd,Pt)3Sn |
| Sn | ⓘPalarstanide | Pd5(Sn,As)2 |
| Sn | ⓘRustenburgite | (Pt,Pd)3Sn |
| Sn | ⓘStannopalladinite | (Pd,Cu)3Sn |
| Sn | ⓘKojonenite | Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) |
| Sb | Antimony | |
| Sb | ⓘArsenopalladinite | Pd8(As,Sb)3 |
| Sb | ⓘMertieite | Pd8Sb2.5As0.5 |
| Sb | ⓘStibnite | Sb2S3 |
| Sb | ⓘTetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Te | Tellurium | |
| Te | ⓘHessite | Ag2Te |
| Te | ⓘKeithconnite | Pd20Te7 |
| Te | ⓘKotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| Te | ⓘMichenerite | PdBiTe |
| Te | ⓘMoncheite | Pt(Te,Bi)2 |
| Te | ⓘTelluropalladinite | Pd9Te4 |
| Te | ⓘTelargpalite | (Pd,Ag)3(Te,Bi) |
| Te | ⓘTemagamite | Pd3HgTe3 |
| Te | ⓘKojonenite | Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) |
| Re | Rhenium | |
| Re | ⓘUM1986-51-S:Re | Re2S3 |
| Pt | Platinum | |
| Pt | ⓘAtokite | (Pd,Pt)3Sn |
| Pt | ⓘBraggite | PdPt3S4 |
| Pt | ⓘCooperite | PtS |
| Pt | ⓘHollingworthite | (Rh,Pt,Pd)AsS |
| Pt | ⓘIsoferroplatinum | Pt3Fe |
| Pt | ⓘMoncheite | Pt(Te,Bi)2 |
| Pt | ⓘNative Palladium | (Pd,Pt) |
| Pt | ⓘSperrylite var.Platarsite | Pt(As,S)2 |
| Pt | ⓘNative Platinum | Pt |
| Pt | ⓘNative Rhodium | (Rh,Pt) |
| Pt | ⓘRustenburgite | (Pt,Pd)3Sn |
| Pt | ⓘSperrylite | PtAs2 |
| Pt | ⓘTulameenite | Pt2CuFe |
| Au | Gold | |
| Au | ⓘNative Gold var.Electrum | (Au,Ag) |
| Au | ⓘNative Gold | Au |
| Au | ⓘNative Gold var.Palladium-bearing Gold | (Au,Pd) |
| Hg | Mercury | |
| Hg | ⓘPotarite | PdHg |
| Hg | ⓘTemagamite | Pd3HgTe3 |
| Pb | Lead | |
| Pb | ⓘGalena | PbS |
| Pb | ⓘPlumbopalladinite | Pd3Pb2 |
| Pb | ⓘZvyagintsevite | Pd3Pb |
| Bi | Bismuth | |
| Bi | ⓘKotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| Bi | ⓘMichenerite | PdBiTe |
| Bi | ⓘMoncheite | Pt(Te,Bi)2 |
| Bi | ⓘPalladobismutharsenide | Pd2(As,Bi) |
| Bi | ⓘTelargpalite | (Pd,Ag)3(Te,Bi) |
| Occurrences | 65 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Youngest Fossil Listed | 66.0 Ma (Late/Upper Cretaceous) | |||||||||
| Oldest Fossil Listed | 113 Ma (Early/Lower Cretaceous) | |||||||||
| Stratigraphic Units |
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| Fossils from Region | Click here to show the list. | |||||||||
| Fossil Localities | Click to show 6 fossil localities |
| Wikipedia: | https://en.wikipedia.org/wiki/Stillwater_County,_Montana |
|---|---|
| Wikidata ID: | Q490750 |
| GeoNames ID: | 5680538 |