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Stillwater Mine, Stillwater Complex, Nye, Stillwater Co., Montana, USAi
Regional Level Types
Stillwater MineMine
Stillwater ComplexComplex
Nye- not defined -
Stillwater Co.County
MontanaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 45° 23' 20'' North , 109° 52' 25'' West
Latitude & Longitude (decimal): 45.38895,-109.87365
GeoHash:G#: c81f5yb3y
Locality type:Mine
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Absarokee1,150 (2011)36.6km
Greycliff112 (2011)42.2km
Reed Point193 (2011)44.0km
Big Timber1,648 (2017)50.0km


PGM ores (mainly of Pd and Pt) are mined from the eastern portion of the J-M Reef. The deposit was discovered in the early 1970s; mining commenced in 1986. During 2003, the Stillwater Mine (owned by the Stillwater Mining Co.) produced approximately 428,000 ounces of palladium and platinum, compared to approximately 492,000 ounces in 2002 and approximately 504,000 ounces in 2001.

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


62 valid minerals. 5 (TL) - type locality of valid minerals.

Detailed Mineral List:

Arsenopalladinite
Formula: Pd8(As,Sb)3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Arsenopyrite
Formula: FeAsS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Atokite
Formula: (Pd,Pt)3Sn
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Braggite
Formula: (Pt,Pd,Ni)S
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
'Bravoite'
Formula: (Fe,Ni)S2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Calcite
Formula: CaCO3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Carrollite
Formula: Cu(Co,Ni)2S4
Reference: Natural History Museum Vienna collection
Chalcopyrite
Formula: CuFeS2
Reference: Natural History Museum Vienna collection
Chlorapatite
Formula: Ca5(PO4)3Cl
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Cobaltite
Formula: CoAsS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Cooperite
Formula: PtS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Copper
Formula: Cu
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Covellite
Formula: CuS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Cubanite
Formula: CuFe2S3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Cuprite
Formula: Cu2O
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
'Electrum'
Formula: (Au, Ag)
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Enstatite
Formula: MgSiO3
Reference: Natural History Museum Vienna collection; Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Enstatite var: Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
'Fayalite-Forsterite Series'
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Galena
Formula: PbS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Gersdorffite
Formula: NiAsS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Gold
Formula: Au
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Graphite
Formula: C
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Heazlewoodite
Formula: Ni3S2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Hessite
Formula: Ag2Te
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Hollingworthite
Formula: (Rh,Pt,Pd)AsS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Ilmenite
Formula: Fe2+TiO3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Isoferroplatinum
Formula: Pt3Fe
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Keithconnite (TL)
Formula: Pd20Te7
Type Locality:
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Kotulskite
Formula: Pd(Te,Bi)
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Laurite
Formula: RuS2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Mackinawite
Formula: (Fe,Ni)9S8
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Marcasite
Formula: FeS2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Mertieite-II
Formula: Pd8Sb2.5As0.5
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Michenerite
Formula: PdBiTe
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Millerite
Formula: NiS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Moncheite
Formula: (Pt,Pd)(Te,Bi)2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Mooihoekite
Formula: Cu9Fe9S16
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Nickeline
Formula: NiAs
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: Natural History Museum Vienna collection
Palladium
Formula: (Pd,Pt)
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Palladoarsenide
Formula: Pd2As
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Palladobismutharsenide (TL)
Formula: Pd2(As,Bi)
Type Locality:
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: http://www.mining-technology.com/projects/stillwater/
Platinum ?
Formula: Pt
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Plumbopalladinite
Formula: Pd3Pb2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Pyrite
Formula: FeS2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Pyrrhotite
Formula: Fe7S8
Reference: Natural History Museum Vienna collection; Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Rhodium (TL)
Formula: (Rh,Pt)
Type Locality:
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Rustenburgite
Formula: (Pt,Pd)3Sn
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Sperrylite
Formula: PtAs2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Sphalerite
Formula: ZnS
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Stibnite
Formula: Sb2S3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
'Stilbite subgroup'
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Stillwaterite (TL)
Formula: Pd8As3
Type Locality:
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Natural History Museum Vienna collection; Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Telargpalite
Formula: (Pd,Ag)3(Te,Bi)
Reference: www.excaliburmineral.com/mins-z.htm
Telluropalladinite (TL)
Formula: Pd9Te4
Type Locality:
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Temagamite
Formula: Pd3HgTe3
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Violarite
Formula: Fe2+Ni3+2S4
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Vysotskite
Formula: (Pd,Ni)S
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
Zvyagintsevite
Formula: Pd3Pb
Reference: Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Atokite1.AG.10(Pd,Pt)3Sn
Copper1.AA.05Cu
'Electrum'1.AA.05(Au, Ag)
Gold1.AA.05Au
Graphite1.CB.05aC
Isoferroplatinum1.AG.35Pt3Fe
Palladium1.AF.10(Pd,Pt)
Platinum ?1.AF.10Pt
Plumbopalladinite1.AG.25Pd3Pb2
Rhodium (TL)1.AF.10(Rh,Pt)
Rustenburgite1.AG.10(Pt,Pd)3Sn
Zvyagintsevite1.AG.10Pd3Pb
Group 2 - Sulphides and Sulfosalts
Arsenopalladinite2.AC.10cPd8(As,Sb)3
Arsenopyrite2.EB.20FeAsS
Braggite2.CC.35a(Pt,Pd,Ni)S
Carrollite2.DA.05Cu(Co,Ni)2S4
Chalcopyrite2.CB.10aCuFeS2
Cobaltite2.EB.25CoAsS
Cooperite2.CC.35bPtS
Covellite2.CA.05aCuS
Cubanite2.CB.55aCuFe2S3
Galena2.CD.10PbS
Gersdorffite2.EB.25NiAsS
Heazlewoodite2.BB.05Ni3S2
Hessite2.BA.60Ag2Te
Hollingworthite2.EB.25(Rh,Pt,Pd)AsS
Keithconnite (TL)2.BC.20Pd20Te7
Kotulskite2.CC.05Pd(Te,Bi)
Laurite2.EB.05aRuS2
Mackinawite2.CC.25(Fe,Ni)9S8
Marcasite2.EB.10aFeS2
Mertieite-II2.AC.10bPd8Sb2.5As0.5
Michenerite2.EB.25PdBiTe
Millerite2.CC.20NiS
Moncheite2.EA.20(Pt,Pd)(Te,Bi)2
Mooihoekite2.CB.10bCu9Fe9S16
Nickeline2.CC.05NiAs
Palladoarsenide2.AC.25aPd2As
Palladobismutharsenide (TL)2.AC.25fPd2(As,Bi)
Pentlandite2.BB.15(FexNiy)Σ9S8
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sperrylite2.EB.05aPtAs2
Sphalerite2.CB.05aZnS
Stibnite2.DB.05Sb2S3
Stillwaterite (TL)2.AC.10aPd8As3
Telargpalite2.BC.45(Pd,Ag)3(Te,Bi)
Telluropalladinite (TL)2.BC.30Pd9Te4
Temagamite2.BC.50Pd3HgTe3
Violarite2.DA.05Fe2+Ni3+2S4
Vysotskite2.CC.35a(Pd,Ni)S
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Cuprite4.AA.10Cu2O
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Chlorapatite8.BN.05Ca5(PO4)3Cl
Group 9 - Silicates
Enstatite9.DA.05MgSiO3
var: Bronzite9.DA.05(Mg,Fe2+)2[SiO3]2
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Talc9.EC.05Mg3Si4O10(OH)2
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Bravoite'-(Fe,Ni)S2
'Fayalite-Forsterite Series'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Gold1.1.1.1Au
Platinum Group Metals and Alloys
Atokite1.2.5.3(Pd,Pt)3Sn
Isoferroplatinum1.2.5.1Pt3Fe
Palladium1.2.1.4(Pd,Pt)
Platinum ?1.2.1.1Pt
Plumbopalladinite1.2.11.1Pd3Pb2
Rhodium (TL)1.2.1.3(Rh,Pt)
Rustenburgite1.2.5.2(Pt,Pd)3Sn
Zvyagintsevite1.2.5.4Pd3Pb
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p > 3:1
Telargpalite2.1.3.1(Pd,Ag)3(Te,Bi)
AmBnXp, with (m+n):p = 3:1
Keithconnite (TL)2.2.6.1Pd20Te7
AmBnXp, with (m+n):p = 2:1
Hessite2.4.2.1Ag2Te
Palladoarsenide2.4.14.1Pd2As
Palladobismutharsenide (TL)2.4.15.1Pd2(As,Bi)
AmBnXp, with (m+n):p = 3:2
Heazlewoodite2.5.3.1Ni3S2
AmBnXp, with (m+n):p = 4:3
Temagamite2.6.5.1Pd3HgTe3
AmBnXp, with (m+n):p = 9:8
Mackinawite2.7.2.1(Fe,Ni)9S8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Braggite2.8.5.3(Pt,Pd,Ni)S
Cooperite2.8.5.1PtS
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Millerite2.8.16.1NiS
Nickeline2.8.11.1NiAs
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
Vysotskite2.8.5.2(Pd,Ni)S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Cubanite2.9.13.1CuFe2S3
Mooihoekite2.9.8.3Cu9Fe9S16
AmBnXp, with (m+n):p = 3:4
Carrollite2.10.1.2Cu(Co,Ni)2S4
Violarite2.10.1.8Fe2+Ni3+2S4
AmBnXp, with (m+n):p = 2:3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Cobaltite2.12.3.1CoAsS
Gersdorffite2.12.3.2NiAsS
Hollingworthite2.12.3.8(Rh,Pt,Pd)AsS
Laurite2.12.1.10RuS2
Marcasite2.12.2.1FeS2
Michenerite2.12.3.11PdBiTe
Moncheite2.12.14.3(Pt,Pd)(Te,Bi)2
Pyrite2.12.1.1FeS2
Sperrylite2.12.1.13PtAs2
Miscellaneous
Arsenopalladinite2.16.5.1Pd8(As,Sb)3
Mertieite-II2.16.3.1Pd8Sb2.5As0.5
Stillwaterite (TL)2.16.4.1Pd8As3
Telluropalladinite (TL)2.16.6.1Pd9Te4
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Chlorapatite41.8.1.2Ca5(PO4)3Cl
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)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1MgSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings with 2:1 clays
Nontronite71.3.1a.3Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
'Bravoite'-(Fe,Ni)S2
'Electrum'-(Au, Ag)
Enstatite
var: Bronzite
-(Mg,Fe2+)2[SiO3]2
'Fayalite-Forsterite Series'-
Kotulskite-Pd(Te,Bi)
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
H TalcMg3Si4O10(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H NatroliteNa2Al2Si3O10 · 2H2O
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
CCarbon
C CalciteCaCO3
C GraphiteC
OOxygen
O NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
O EnstatiteMgSiO3
O TalcMg3Si4O10(OH)2
O CalciteCaCO3
O ChlorapatiteCa5(PO4)3Cl
O ChromiteFe2+Cr23+O4
O CupriteCu2O
O Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O NatroliteNa2Al2Si3O10 · 2H2O
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
NaSodium
Na NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Na NatroliteNa2Al2Si3O10 · 2H2O
MgMagnesium
Mg EnstatiteMgSiO3
Mg TalcMg3Si4O10(OH)2
Mg Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al NatroliteNa2Al2Si3O10 · 2H2O
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Si EnstatiteMgSiO3
Si TalcMg3Si4O10(OH)2
Si Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
PPhosphorus
P ChlorapatiteCa5(PO4)3Cl
SSulfur
S MooihoekiteCu9Fe9S16
S CarrolliteCu(Co,Ni)2S4
S PyrrhotiteFe7S8
S ChalcopyriteCuFeS2
S Pentlandite(FexNiy)Σ9S8
S ArsenopyriteFeAsS
S Bravoite(Fe,Ni)S2
S Braggite(Pt,Pd,Ni)S
S CobaltiteCoAsS
S CooperitePtS
S CovelliteCuS
S CubaniteCuFe2S3
S GalenaPbS
S GersdorffiteNiAsS
S HeazlewooditeNi3S2
S Hollingworthite(Rh,Pt,Pd)AsS
S LauriteRuS2
S Mackinawite(Fe,Ni)9S8
S MarcasiteFeS2
S MilleriteNiS
S PyriteFeS2
S SphaleriteZnS
S StibniteSb2S3
S ViolariteFe2+Ni23+S4
S Vysotskite(Pd,Ni)S
ClChlorine
Cl ChlorapatiteCa5(PO4)3Cl
CaCalcium
Ca CalciteCaCO3
Ca ChlorapatiteCa5(PO4)3Cl
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe MooihoekiteCu9Fe9S16
Fe NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Fe PyrrhotiteFe7S8
Fe ChalcopyriteCuFeS2
Fe Pentlandite(FexNiy)Σ9S8
Fe ArsenopyriteFeAsS
Fe Bravoite(Fe,Ni)S2
Fe ChromiteFe2+Cr23+O4
Fe CubaniteCuFe2S3
Fe Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe IlmeniteFe2+TiO3
Fe IsoferroplatinumPt3Fe
Fe Mackinawite(Fe,Ni)9S8
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe ViolariteFe2+Ni23+S4
CoCobalt
Co CarrolliteCu(Co,Ni)2S4
Co CobaltiteCoAsS
NiNickel
Ni CarrolliteCu(Co,Ni)2S4
Ni Pentlandite(FexNiy)Σ9S8
Ni Bravoite(Fe,Ni)S2
Ni GersdorffiteNiAsS
Ni HeazlewooditeNi3S2
Ni Mackinawite(Fe,Ni)9S8
Ni MilleriteNiS
Ni NickelineNiAs
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Ni ViolariteFe2+Ni23+S4
Ni Vysotskite(Pd,Ni)S
CuCopper
Cu MooihoekiteCu9Fe9S16
Cu CarrolliteCu(Co,Ni)2S4
Cu ChalcopyriteCuFeS2
Cu CopperCu
Cu CovelliteCuS
Cu CubaniteCuFe2S3
Cu CupriteCu2O
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Zn SphaleriteZnS
AsArsenic
As PalladobismutharsenidePd2(As,Bi)
As StillwateritePd8As3
As ArsenopyriteFeAsS
As ArsenopalladinitePd8(As,Sb)3
As CobaltiteCoAsS
As GersdorffiteNiAsS
As Hollingworthite(Rh,Pt,Pd)AsS
As Mertieite-IIPd8Sb2.5As0.5
As NickelineNiAs
As PalladoarsenidePd2As
As SperrylitePtAs2
RuRuthenium
Ru LauriteRuS2
RhRhodium
Rh Rhodium(Rh,Pt)
Rh Hollingworthite(Rh,Pt,Pd)AsS
PdPalladium
Pd KeithconnitePd20Te7
Pd PalladobismutharsenidePd2(As,Bi)
Pd StillwateritePd8As3
Pd TelluropalladinitePd9Te4
Pd Telargpalite(Pd,Ag)3(Te,Bi)
Pd ArsenopalladinitePd8(As,Sb)3
Pd Atokite(Pd,Pt)3Sn
Pd KotulskitePd(Te,Bi)
Pd Mertieite-IIPd8Sb2.5As0.5
Pd MicheneritePdBiTe
Pd Moncheite(Pt,Pd)(Te,Bi)2
Pd Palladium(Pd,Pt)
Pd PalladoarsenidePd2As
Pd PlumbopalladinitePd3Pb2
Pd TemagamitePd3HgTe3
Pd Vysotskite(Pd,Ni)S
Pd ZvyagintsevitePd3Pb
AgSilver
Ag Telargpalite(Pd,Ag)3(Te,Bi)
Ag Electrum(Au, Ag)
Ag HessiteAg2Te
SnTin
Sn Atokite(Pd,Pt)3Sn
Sn Rustenburgite(Pt,Pd)3Sn
SbAntimony
Sb Mertieite-IIPd8Sb2.5As0.5
Sb StibniteSb2S3
TeTellurium
Te KeithconnitePd20Te7
Te TelluropalladinitePd9Te4
Te Telargpalite(Pd,Ag)3(Te,Bi)
Te HessiteAg2Te
Te KotulskitePd(Te,Bi)
Te MicheneritePdBiTe
Te Moncheite(Pt,Pd)(Te,Bi)2
Te TemagamitePd3HgTe3
PtPlatinum
Pt Braggite(Pt,Pd,Ni)S
Pt CooperitePtS
Pt IsoferroplatinumPt3Fe
Pt Moncheite(Pt,Pd)(Te,Bi)2
Pt Rustenburgite(Pt,Pd)3Sn
Pt SperrylitePtAs2
Pt PlatinumPt
AuGold
Au Electrum(Au, Ag)
Au GoldAu
HgMercury
Hg TemagamitePd3HgTe3
PbLead
Pb GalenaPbS
Pb PlumbopalladinitePd3Pb2
Pb ZvyagintsevitePd3Pb
BiBismuth
Bi PalladobismutharsenidePd2(As,Bi)
Bi Telargpalite(Pd,Ag)3(Te,Bi)
Bi KotulskitePd(Te,Bi)
Bi MicheneritePdBiTe
Bi Moncheite(Pt,Pd)(Te,Bi)2

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

Holocene - Pleistocene
0 - 2.588 Ma



ID: 2064965
Glacial moraine deposits

Age: Pleistocene (0 - 2.588 Ma)

Description: glacial moraine deposits

Lithology: Sand, gravel

Reference: Zientek, M.L., P.D. Derkey, R.J. Miller, J.D. Causet et al. Spatial Databases for the Geology of the Northern Rocky Mountains - Idaho, Montana, and Washington. U.S. Geological Survey Open-File Report 2005-1235 Version 1.0. [25]

Archean
2500 - 4000 Ma



ID: 3186190
Archean intrusive rocks

Age: Archean (2500 - 4000 Ma)

Stratigraphic Name: Stillwater Complex

Lithology: Intrusive igneous rocks

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]

Archean
2500 - 4000 Ma



ID: 2930264
Stillwater complex

Age: Archean (2500 - 4000 Ma)

Stratigraphic Name: Stillwater Complex

Description: Layered ultramafic and mafic rocks from peridotite and pyroxenite at the base (ultramafic series) to gabbro and anorthosite in the upper part (banded series). Maximum exposed thickness in the Beartooth Mountains is about 6,700 m (22,000 ft).

Comments: Original map source: Vuke, S.M., Porter, K.W., Lonn, J.D., and Lopez, D.A., 2007, Geologic Map of Montana - Compact Disc: Montana Bureau of Mines and Geology: Geologic Map 62-C, 73 p., 2 sheets, scale 1:500,000. This map was digitized in 2012 as a result of a contract betwe

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]

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)
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals: 87(3): 208-240.

External Links



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