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Stillwater Complex, Stillwater Co., Montana, USA

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A platinum-palladium (PGE) deposit owned by Johns-Manville Corp.




References:
- Cabri, L.J. and Laflamme, J.H.G. (1974) Rhodium, platinum, and gold alloys from the Stillwater Complex. Canadian Mineralogist: 12: 399-403.
- Canadian Mineralogist (1976): 14:410.
- Cabri, L.J., Clark, A.M., and Chen, T.T. (1977) Arsenopalladinite from Itabira, Brazil, and from the Stillwater Complex, Montana. Canadian Mineralogist: 15: 70-73.
- Cabri, L.J., Rowland, J.F., Laflamme, J.H.G., and Stewart, J.M. (1979) Keithconnite, telluropalladinite and other palladium-platinum tellurides from the Stillwater Complex, Montana. Canadian Mineralogist: 17: 589-594.




Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  'Albite-Anorthite Series'
    Reference: [No reference listed]
  		•  'Amphibole Group'
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  'Apatite'
    Reference: [No reference listed]
  		•  Apatite-(CaCl)
    Ca
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    Reference: []
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: []
  		•  'Apophyllite'
    Reference: []
  		•  Arsenopalladinite
    Pd
     
    8
    		(As,Sb)
     
    3
    Reference: [Canadian Mineralogist (1977): 15: 70-73.]
  		•  Atokite
    (Pd,Pt)
     
    3
    		Sn
    Reference: [www.cannonmicroprobe.com/Mineral_Specimens.htm]
  		•  Augite
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
    Reference: [No reference listed]
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: []
  		•  Braggite
    (Pt,Pd,Ni)S
    Description: Irregular silver blebs or elongate grains seldom larger than 4mm, rarely exhibits crystal faces. Commonly adjacent or interstitial to silicate grains. Associated with pyrrhotite and chalcopyrite.
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903; Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
    Site Photo
    Stillwater Complex, Stillwater Co., Montana, USA
    © Keith Wood
  		•  Calcite
    CaCO
     
    3
    Reference: [No reference listed]
  		•  'Chabazite'
    Reference: []
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  'Chlorite Group'
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Chromite
    FeCr
     
    2
    		O
     
    4
    Reference: [No reference listed]
    Site Photo
    Stillwater Complex, Stillwater Co., Montana, USA
    © JSS
  		•  Chrysotile
    Mg
     
    3
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [No reference listed]
  		•  Cobaltite
    CoAsS
    Reference: []
  		•  Cooperite
    (Pt,Pd,Ni)S
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Copper
    Cu
    Reference: []
  		•  Covellite
    CuS
    Reference: []
  		•  Cubanite
    CuFe
     
    2
    		S
     
    3
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Enstatite
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
    Reference: [No reference listed]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Galena
    PbS
    Reference: []
  		•  Gold
    Au
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Gold
    var: Electrum
    (Au, Ag)
    Reference: []
  		•  Gold
    var: Palladian Gold
    (Au,Pd)
    Reference: []
  		•  Graphite
    C
    Reference: []
  		•  Heazlewoodite
    Ni
     
    3
    		S
     
    2
    Reference: []
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: []
  		•  Hessite
    Ag
     
    2
    		Te
    Reference: []
  		•  'Heulandite'
    Reference: [No reference listed]
  		•  Hollingworthite
    (Rh,Pt,Pd)AsS
    Reference: []
  		•  'Hornblende'
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: []
  		•  Isoferroplatinum
    Pt
     
    3
    		Fe
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Keithconnite (TL)
    Pd
     
    3-x
    		Te (x = 0.14 - 0.43)
    Type Locality: Stillwater Complex, Stillwater Co., Montana, USA
    Reference: [Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
  		•  Kotulskite
    Pd(Te,Bi)
     
    1-2
    Reference: [Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
  		•  Laumontite
    CaAl
     
    2
    		Si
     
    4
    		O
     
    12
    		·4H
     
    2
    		O
    Reference: [No reference listed]
  		•  Laurite
    RuS
     
    2
    Description: These form interstitial to chromite grains in the chromite seams of the lower ultramafic series.
    Reference: [Talkington and Lipin, Econ. Geol. Vol. 81, 1986]
  		•  Mackinawite
    (Fe,Ni)
     
    9
    		S
     
    8
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [No reference listed]
  		•  Menshikovite
    Pd
     
    3
    		Ni
     
    2
    		As
     
    3
    Reference: []
  		•  Merenskyite
    (Pd,Pt)(Te,Bi)
     
    2
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
  		•  Mertieite-II
    Pd
     
    8
    		(Sb,As)
     
    3
    Reference: []
  		•  Michenerite
    PdBiTe
    Reference: []
  		•  Millerite
    NiS
    Reference: []
  		•  Moncheite
    (Pt,Pd)(Te,Bi)
     
    2
    Reference: [Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
  		•  Nickeline
    NiAs
    Reference: []
  		•  'Olivine'
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1986) 81:1187-1195]
  		•  Palarstanide
    Pd
     
    8
    		(As,Sn)
     
    3
    Reference: [www.cannonmicroprobe.com/Mineral_Specimens.htm]
  		•  Palladium
    (Pd,Pt)
    Reference: [Canadian Mineralogist (1975) 13:321-335]
  		•  Palladoarsenide
    Pd
     
    2
    		As
    Reference: []
  		•  Palladobismutharsenide (TL)
    Pd
     
    2
    		(As,Bi)
    Type Locality: Stillwater Complex, Stillwater Co., Montana, USA
    Reference: [CanMin 14:410]
  		•  Pentlandite
    (Fe,Ni)
     
    9
    		S
     
    8
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Phlogopite
    var: Chromian Phlogopite
    Reference: []
  		•  Platinum
    Pt
    Reference: []
  		•  Plumbopalladinite
    Pd
     
    3
    		Pb
     
    2
    Reference: []
  		•  Potarite
    PdHg
    Reference: [www.cannonmicroprobe.com/Mineral_Specimens.htm]
  		•  Pyrite
    FeS
     
    2
    Reference: [No reference listed]
  		•  Pyrite
    var: Bravoite
    (Fe,Ni)S
     
    2
    Reference: []
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [No reference listed]
  		•  Quartz
    SiO
     
    2
    Reference: [No reference listed]
  		•  Rhodium (TL)
    (Rh,Pt)
    Type Locality: Stillwater Complex, Stillwater Co., Montana, USA
    Reference: [Can.Min.(1974) 12, 399-403]
  		•  Rustenburgite
    (Pt,Pd)
     
    3
    		Sn
    Reference: []
  		•  'Serpentine Group'
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Silver
    Ag
    Reference: []
  		•  Sperrylite
    PtAs
     
    2
    Description: These form interstitial to chromite grains in the chromite seams of the lower ultramafic series.
    Reference: [Talkington and Lipin, Econ. Geol. Vol. 81, 1986; Canadian Mineralogist (1975) 13:321-335]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: []
  		•  'Stilbite'
    Reference: [No reference listed]
  		•  Stillwaterite (TL)
    Pd
     
    8
    		As
     
    3
    Type Locality: Stillwater Complex, Stillwater Co., Montana, USA
    Reference: [Canadian Mineralogist (1975) 13:321-335]
  		•  Talc
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Canadian Mineralogist; August 2006; v. 44; no. 4; p. 895-903]
  		•  Talnakhite
    Cu
     
    9
    		(Fe,Ni)
     
    8
    		S
     
    16
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Tarkianite
    (Cu,Fe)(Re,Mo)
     
    4
    		S
     
    8
    Reference: [Kojonen, K.K., Roberts, A.C., Isomäki, O.-P., Knauf, V.V., Johanson, Bo, Pakkanen, L. (2004): Tarkianite, (Cu,Fe)(Re,Mo)4S8, a new mineral species from the Hitura mine, Nivala, Finland. The Canadian Mineralogist, 42, 539-544]
  		•  Telargpalite
    (Pd,Ag)
     
    3
    		(Te,Bi)
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Telluropalladinite (TL)
    Pd
     
    9
    		Te
     
    4
    Type Locality: Stillwater Complex, Stillwater Co., Montana, USA
    Reference: [Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
    Site Photo
    Stillwater Complex, Stillwater Co., Montana, USA
    © 2008, J. Weissman
  		•  Temagamite
    Pd
     
    3
    		HgTe
     
    3
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Tetraferroplatinum
    PtFe
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Tetrahedrite
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Reference: []
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: []
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Tulameenite
    Pt
     
    2
    		CuFe
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]
  		•  Violarite
    Fe
    2+
     
    		Ni
    3+
    2
    		S
     
    4
    Reference: []
  		•  Vysotskite
    (Pd,Ni)S
    Reference: [Canadian Mineralogist Vol. 17, pp. 589-594 (1979)]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [No reference listed]
  		•  Zvyagintsevite
    (Pd,Pt,Au)
     
    3
    		(Pb,Sn)
    Reference: [Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990]


    88 entries listed. 73 valid minerals. 5 type localities (valid minerals).

    Localities in this Region:
    USA
     
    • Montana
      • Stillwater Co.
        • Stillwater Complex
          • J-M Reef (Howland Reef)

    The above list 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!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Montana, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 2nd Nov 2009 00:33:08