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.
- USGS Bull 1674D
- USGS Prof Paper 1038
- USGS Prof Paper 694
- USGS Prof Paper 999
- Canadian Mineralogist Vol.24, pp. 329-346 (1986)

- DePaolo and Wasserburg (1979) Sm-Nd age of the Stillwater complex and the mantle evolution curve for neodymium. Geochimica et Cosmochimica Acta Vol. 43, Issue 7, July 1979, pp. 999-1008

Mineral List

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

'Albite-Anorthite Series' Almandine 'Amphibole Group' Anthophyllite 'Apatite' 'Apophyllite' Arsenopalladinite Atokite Augite Biotite Bornite Braggite Calcite 'Chabazite' Chalcopyrite Chlorapatite 'Chlorite Group' Chromite Chrysotile Cobaltite ? Cooperite Copper Cordierite Covellite Cubanite Cummingtonite Cuprite

Enstatite var: Bronzite Epidote Fluorapatite Forsterite Galena Gersdorffite Goethite Gold var: Electrum var: Palladian Gold Graphite Grossular Heazlewoodite Hematite Hessite 'Heulandite' Hollingworthite 'Hornblende' Ilmenite Isoferroplatinum Keithconnite (TL) Kotulskite Laumontite Laurite Mackinawite Magnetite

Marcasite Menshikovite Merenskyite Mertieite-II Michenerite Millerite Molybdenite Moncheite Mooihoekite Muscovite var: Sericite Nickeline 'Olivine' Palarstanide Palladium Palladoarsenide Palladobismutharsenide (TL) Pargasite Pentlandite Phlogopite var: Chromian Phlogopite Pigeonite Platinum Plumbopalladinite Potarite Pyrite var: Bravoite Pyrrhotite

Quartz Rhodium (TL) Rustenburgite Rutile 'Serpentine Group' Silver Sperrylite Sphalerite Staurolite 'Stilbite' Stillwaterite (TL) Talc Talnakhite Tarkianite Telargpalite Telluropalladinite (TL) Temagamite Tetraferroplatinum Tetrahedrite Titanite Tremolite Tulameenite Violarite Vysotskite Zircon Zvyagintsevite

158 entries listed. 89 valid minerals. 5 type localities (valid minerals).

Localities in this Region

USA Montana Stillwater Co. Stillwater Complex Benbow Mine Benbow Ni-Cu Occurrence Black Butte Blakely Creek Frog Pond Blitz Occurrence Blitz Ridge Chrome Lake Cr-Pt Occurrence Chrome Lake Ni-Cu Occurrence Fishtail Creek Ni-Cu Occurrence Graham Creek Iron Creek Iron Mountain J-M Reef (Howland Reef) Minneapolis adit Little Rocky Creek Ni-Cu Occurrence (Rocky Group; Chrome Lake; Benbow) Lost Mountain Frog Pond

USA Montana Stillwater Co. Stillwater Complex M16 Drill Hole Mouat-Sampson Mine (Mouat; Mountain View) Mouat Iron-Titanium Group Mouat Ni-Cu South Occurrence (South Mouat Area) Mouat Ni-Cu Verdegris Creek Prospect (Mountain View; Mouat-Sampson; Stillwater Copper-Nickel) Mountain View Nye-Chrome Lake Ni-Cu Prospect (Nye Basin; Stillwater East; Benbow) Nye Basin; Alice Prospect Nye Basin Alice Cr-Pt Occurrence (Middle Basin) Nye Basin Big Seven Occurrence Nye Basin Cr-Pt Occurrence Nye Basin Lip Occurrence (Lower Basin) Nye Basin Ni-Cu East Occurrence Nye Basin Ni-Cu Lip Occurrence Pyramid Mountain Group Stillwater Complex Chromite Deposit (Benbow Mine; Gish Mine; Mouat Mine) West Fork