Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Stillwater Complex, Nye, Stillwater Co., Montana, USA

Oldest recorded age at locality: 2906
Youngest recorded age at locality: 2188.3

mindat Locality ID: 3883
mindat URL: http://www.mindat.org/loc-3883.html

Tectonic Settings:

Total number of sublocalities beneath "Stillwater Complex, Nye, Stillwater Co., Montana, USA": 16
Total number of bottom-level sublocalities: 14

Number of Child Localities: 14
Child Localities:
Benbow Mine
Benbow Ni-Cu Occurrence
Black Butte
Blakely Creek
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)
Stillwater Mine

Latitude: 45°21'39"N
Longitude: 109°48'15"W
Decimal Degree (lat, lon): 45.360833333333,-109.80416666667

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amphibole	Apatite	Arsenopyrite	Auricupride	Beryl	Calcite	Chalcopyrite	Clay	Clinozoisite	Cobaltite
Copper	Corundum	Covellite	Cubanite	Diaspore	Epidote	Feldspar	Marcasite	Melonite	Mica
Millerite	Molybdenite	Natrolite	Nickeline	None	Not in a structural group	Pentlandite	Perovskite	Potarite	Pyrite
Pyroxene	Quartz	Rocksalt	Serpentine	Smectite-vermiculite	Sphalerite	Spinel	Staurolite	Stibnite	Stillwaterite
Talc	Ullmannite	Wurtzite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au Bi C Ca Cl Co Cr Cu F Fe H Hg K Mg Mo Na Ni O P Pb Pd Pt Re Rh Ru S Sb Si Sn Te Ti Zn Zr

Elements from minerals reported directly at this locality: Ag Al As Ca Cu F Fe H K Mg Mo Na Ni O P Pd Pt Re S Si Te Zr

Structural Groups for minerals in this locality:
Amphibole Apatite Arsenopyrite Auricupride Beryl Calcite Chalcopyrite Clay Clinozoisite Cobaltite
Copper Corundum Covellite Cubanite Diaspore Epidote Feldspar Marcasite Melonite Mica
Millerite Molybdenite Natrolite Nickeline None Not in a structural group Pentlandite Perovskite Potarite Pyrite
Pyroxene Quartz Rocksalt Serpentine Smectite-vermiculite Sphalerite Spinel Staurolite Stibnite Stillwaterite
Talc Ullmannite Wurtzite Zircon

95 IMA Minerals at location:

Actinolite ()*	Annite ()*	Anorthite ()*	Anthophyllite ()*	Arsenopalladinite ()*
Arsenopyrite ()*	Atokite ()*	Augite ()*	Braggite ()*	Calcite ()*
Carrollite ()*	Chalcopyrite ()*	Chlorapatite ()*	Chromite ()*	Chrysotile ()*
Cobaltite ()*	Cooperite ()*	Copper ()*	Cordierite ()*	Covellite ()*
Cubanite ()*	Cummingtonite ()*	Cuprite ()*	Enstatite ()*	Epidote ()*
Fluorapatite ()*	Galena ()*	Goethite ()*	Gold ()*	Graphite ()*
Heazlewoodite ()*	Hematite ()*	Hessite ()*	Hollingworthite ()*	Ilmenite ()*
Isoferroplatinum ()*	Keithconnite ()*	Kojonenite ()*	Kotulskite ()*	Laumontite ()*
Laurite ()*	Mackinawite ()*	Magnetite ()*	Marcasite ()*	Menshikovite ()*
Merenskyite ()*	Mertieite-II ()*	Michenerite ()*	Millerite ()*	Molybdenite ()*
Moncheite ()*	Mooihoekite ()*	Natrolite ()*	Nickeline ()*	Nontronite ()*
Palarstanide ()*	Palladium ()*	Palladoarsenide ()*	Palladobismutharsenide ()*	Gersdorffite-Pa3 ()*
Pargasite ()*	Pentlandite ()*	Phlogopite ()*	Pigeonite ()*	Platarsite ()*
Platinum ()*	Plumbopalladinite ()*	Potarite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Rhodium ()*	Rustenburgite ()*	Siderophyllite ()*	Silver ()*
Sperrylite ()*	Sphalerite ()*	Stannopalladinite ()*	Staurolite ()*	Stibnite ()*
Stillwaterite ()*	Talc ()*	Talnakhite ()*	Tarkianite ()*	Telargpalite ()*
Telluropalladinite ()*	Temagamite ()*	Tetraferroplatinum ()*	Tremolite ()*	Tulameenite ()*
Violarite ()*	Vysotskite ()*	Zircon ()*	Zoisite ()*	Zvyagintsevite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	2906	2188.3	0		3419
Annite ()*	Mica Clay	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	2906	2188.3	0		356
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	2906	2188.3	0		1036
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2906	2188.3	0		718
Arsenopalladinite ()*	Stillwaterite	Pd₈As₃	2906	2188.3	2	234096,234097	31
Arsenopyrite ()*	Arsenopyrite	FeAsS	2608.3	2188.3	1	234097	9052
Atokite ()*	Auricupride Perovskite	Pd₃Sn	2906	2188.3	2	234096,234097	29
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	2906	2188.3	0		2060
Braggite ()*	None	PdPt₃S₄	2906	2188.3	4	234086,234094,234096,234097	101
Calcite ()*	Calcite	Ca(CO₃)	2608.3	2188.3	1	234097	27770
Carrollite ()*	Spinel	CuCo₂S₄	2608.3	2188.3	1	234097	154
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2906	2188.3	12	234083,234084,234085,234086,234088,234090,234091,234092,234093,234094,234096,234097	27198
Chlorapatite ()*	Apatite	Ca₅(PO₄)₃Cl	2608.3	2188.3	1	234097	203
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2906	2188.3	5	234082,234083,234085,234086,234097	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	2906	2188.3	0		951
Cobaltite ()*	Cobaltite	CoAsS	2906	2188.3	2	234085,234097	966
Cooperite ()*	None	PtS	2906	2188.3	4	234086,234092,234096,234097	124
Copper ()*	Copper	Cu	2608.3	2188.3	1	234097	3846
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	2906	2188.3	0		1008
Covellite ()*	Covellite	CuS	2608.3	2188.3	1	234097	4165
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃	2906	2188.3	3	234086,234096,234097	802
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2906	2188.3	0		327
Cuprite ()*	Not in a structural group	Cu₂O	2608.3	2188.3	1	234097	2970
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	2906	2188.3	3	234082,234096,234097	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2608.3	2188.3	1	234097	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	2906	2188.3	0		2740
Galena ()*	Rocksalt	PbS	2906	2188.3	2	234085,234097	24243
Goethite ()*	Diaspore	FeO(OH)	2906	2188.3	0		7437
Gold ()*	Copper	Au	2906	2188.3	3	234085,234096,234097	30554
Graphite ()*	None	C	2906	2188.3	2	234086,234097	2812
Heazlewoodite ()*	None	Ni₃S₂	2906	2188.3	2	234086,234097	205
Hematite ()*	Corundum	Fe₂O₃	2906	2681	1	234085	14640
Hessite ()*	None	Ag₂Te	2608.3	2188.3	1	234097	804
Hollingworthite ()*	Ullmannite	RhAsS	2906	2188.3	2	234085,234097	119
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2906	2188.3	2	234085,234097	5433
Isoferroplatinum ()*	Auricupride Perovskite	Pt₃Fe	2906	2188.3	2	234096,234097	128
Keithconnite ()*	None	Pd₂₀Te₇	2906	2188.3	3	234085,234096,234097	40
Kojonenite ()*	None	Pd_7-xSnTe₂ (0.3 ≤ x ≤ 0.8)	2906	2681	1	234096	1
Kotulskite ()*	Nickeline	Pd(Te,Bi)_2-x (x ≈ 0.4)	2906	2188.3	2	234096,234097	116
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	2906	2188.3	0		1271
Laurite ()*	Pyrite	RuS₂	2906	2188.3	3	234083,234096,234097	226
Mackinawite ()*	None	(Fe,Ni)_1+xS (x = 0-0.07)	2906	2188.3	3	234086,234096,234097	451
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2906	2188.3	8	234083,234085,234086,234090,234091,234094,234096,234097	14899
Marcasite ()*	Marcasite	FeS₂	2906	2188.3	2	234086,234097	5674
Menshikovite ()*	None	Pd₃Ni₂As₃	2906	2188.3	0		15
Merenskyite ()*	Melonite	PdTe₂	2906	2188.3	0		155
Mertieite-II ()*	Stillwaterite	Pd₈Sb_2.5As_0.5	2608.3	2188.3	1	234097	44
Michenerite ()*	Ullmannite	PdBiTe	2608.3	2188.3	1	234097	114
Millerite ()*	Millerite	NiS	2906	2188.3	4	234085,234086,234094,234097	1066
Molybdenite ()*	Molybdenite	MoS₂	2716	2693	0		5800
Moncheite ()*	Melonite	Pt(Te,Bi)₂	2906	2188.3	6	234084,234085,234086,234092,234096,234097	133
Mooihoekite ()*	Chalcopyrite	Cu₉Fe₉S₁₆	2608.3	2188.3	1	234097	20
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	2608.3	2188.3	1	234097	1236
Nickeline ()*	Nickeline	NiAs	2608.3	2188.3	1	234097	633
Nontronite ()*	Clay Smectite-vermiculite	Na_0.3Fe³⁺₂(Si,Al)₄O₁₀(OH)₂·nH₂O	2608.3	2188.3	1	234097	471
Palarstanide ()*	Stillwaterite	Pd₅(Sn,As)₂	2906	2681	1	234096	13
Palladium ()*	Copper	Pd	2608.3	2188.3	1	234097	59
Palladoarsenide ()*	None	Pd₂As	2906	2188.3	2	234086,234097	37
Palladobismutharsenide ()*	None	Pd₂(As,Bi)	2608.3	2188.3	1	234097	6
Gersdorffite-Pa3 ()*	Pyrite	NiAsS	2608.3	2188.3	1	234097	767
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	2906	2188.3	0		313
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2906	2188.3	12	234083,234084,234085,234086,234088,234090,234091,234092,234093,234094,234096,234097	1512
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	2906	2681	1	234096	2273
Pigeonite ()*	Pyroxene	(Mg,Fe,Ca)₂Si₂O₆	2906	2188.3	0		303
Platarsite ()*	Pyrite	PtAsS	2906	2681	1	234096	44
Platinum ()*	Copper	Pt	2906	2188.3	0		485
Plumbopalladinite ()*	None	Pd₃Pb₂	2906	2188.3	2	234096,234097	10
Potarite ()*	Potarite	PdHg	2716	2693	1	234096	25
Pyrite ()*	Pyrite	FeS₂	2906	2188.3	8	234084,234085,234086,234088,234092,234094,234096,234097	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2906	2188.3	12	234083,234084,234085,234086,234088,234090,234091,234092,234093,234094,234096,234097	9056
Quartz ()*	Quartz	SiO₂	2906	2188.3	0		61156
Rhodium ()*	Copper	Rh	2608.3	2188.3	1	234097	17
Rustenburgite ()*	Perovskite Auricupride	Pt₃Sn	2608.3	2188.3	1	234097	34
Siderophyllite ()*	Mica	KFe²⁺₂Al(Si₂Al₂)O₁₀(OH)₂	2906	2188.3	0		92
Silver ()*	Copper	Ag	2906	2188.3	0		5186
Sperrylite ()*	Pyrite	PtAs₂	2906	2188.3	4	234084,234085,234086,234097	337
Sphalerite ()*	Sphalerite	ZnS	2906	2188.3	3	234085,234092,234097	21482
Stannopalladinite ()*	None	(Pd,Cu)₃Sn	2906	2681	1	234096	12
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	2906	2188.3	0		978
Stibnite ()*	Stibnite	Sb₂S₃	2608.3	2188.3	1	234097	3418
Stillwaterite ()*	Stillwaterite	Pd₈As₃	2906	2188.3	2	234086,234097	24
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	2906	2188.3	2	234096,234097	3337
Talnakhite ()*	Chalcopyrite	Cu₉Fe₈S₁₆	2906	2188.3	0		35
Tarkianite ()*	None	(Cu,Fe)(Re,Mo)₄S₈	2716	2693	0		6
Telargpalite ()*	None	(Pd,Ag)₃Te	2608.3	2188.3	1	234097	18
Telluropalladinite ()*	None	Pd₉Te₄	2906	2188.3	2	234096,234097	15
Temagamite ()*	None	Pd₃HgTe₃	2608.3	2188.3	1	234097	24
Tetraferroplatinum ()*	Potarite	PtFe	2906	2188.3	0		66
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2906	2188.3	2	234096,234097	2562
Tulameenite ()*	Potarite	Pt₂CuFe	2906	2681	1	234096	48
Violarite ()*	Spinel	FeNi₂S₄	2608.3	2188.3	1	234097	380
Vysotskite ()*	None	PdS	2906	2188.3	5	234085,234086,234094,234096,234097	53
Zircon ()*	Zircon	Zr(SiO₄)	2906	2188.3	0		5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	2906	2188.3	0		1025
Zvyagintsevite ()*	Auricupride Perovskite	Pd₃Pb	2906	2188.3	2	234096,234097	32

5 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Hg-00035	2716	2693		U-Pb, Sm-Nd					Potarite, Temagamite	Hg	3883	Stillwater Complex, Nye, Stillwater Co., Montana, USA		DePaolo and Wasserburg (1979); Premo et al. (1990)
JP35_1717-00001	2906	2754	2830±76	Re-Os		high		81MVL217, 801M02, 355-64-556.0, 355-64-684.5, 355-			3883	Stillwater Complex, Nye, Stillwater Co., Montana, USA	Stillwater PGE deposit, Montana, USA	Lambert et al. (1994)	10.1093/petrology/35.6.1717	JP35_1717
JP35_1717-00002	2721	2681	2701±20	Sm-Nd		high					3883	Stillwater Complex, Nye, Stillwater Co., Montana, USA	Stillwater PGE deposit, Montana, USA	Lambert et al. (1994)	10.1093/petrology/35.6.1717	JP35_1717
Mo-00059	2716	2693		U-Pb, Sm-Nd					Molybdenite, Tarkianite	Mo	3883	Stillwater Complex, Nye, Stillwater Co., Montana, USA		DePaolo and Wasserburg (1979); Premo et al. (1990)
USGS-Rb-Sr-03098	2608.3	2188.3	2398.3±210	Rb-Sr	minimum age of intrusion		whole rock				30835	Stillwater Mine, Stillwater Complex, Nye, Stillwater Co., Montana, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL
FKM-137	Stillwater Complex, Nye, Stillwater Co., Montana, USA	https://www.rockptx.com/fkm-126-to-fkm-150/#FKM-137
R060797	Benbow Mine, Stillwater Complex, Nye, Stillwater Co., Montana, USA	https://rruff.info/R060797
R070567	Minneapolis Adit, J-M Reef (Howland Reef), Stillwater Complex, Nye, Stillwater Co., Montana, USA	https://rruff.info/R070567

All locality data graciously provided by mindat.org

All age data...