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:
Sheridan Mining District (Mill Creek Mining District; Wisconsin Mining District), Madison Co., Montana, USA

Oldest recorded age at locality: 1585.82
Youngest recorded age at locality: 70

mindat Locality ID: 50288
mindat URL: http://www.mindat.org/loc-50288.html

Tectonic Settings:

Total number of sublocalities beneath "Sheridan Mining District (Mill Creek Mining District; Wisconsin Mining District), Madison Co., Montana, USA": 83
Total number of bottom-level sublocalities: 82

Number of Child Localities: 77
Child Localities:
Beaverhead National Forest
Bedford
Belle Mine
Betsy Baker Mine
Bins Mine
Bivens Gulch Placer
Bivens Gulch Talc Prospect
Bluebird Mine
Broadgauge - Tamarack Mines
Buckeye Mine - Victoria Mines
California Creek Placer
Chromium Occurrence (MRDS - 10245465)
Copper Mountain Mine (Ramshorn Mine; Dictator And Belle Union)
Currant Creek Iron Prospect
Currant Creek Mine
Fairview Mine
Geel Prospect
Glenam Claim
Grandview Prospect
Harris Creek Placer
Harris Creek Talc Prospect
Helios Mine
Hill Crest
Horse Creek Chromium Deposit
Horse Creek Quartz Diorite Pegmatite Occurrence
Horse Creek Talc Prospect
Hunt's Claim
Indian Creek Placer
Jane Chromite Claims
Lakeshore Mine (Gladstone)
Latest Out Mine (1)
Latest Out Mine (2)
Leggat Mine
Leiter Mine
Mill Creek Placer
Mohawk Mine
Nash Group
Nettie
Noble Mine (Company Mine)
Occidental Mine (High Up; Oxidental)
Paymaster Mine (Paymaster Heir Mine)
Pedro
Quartz Hill Mine
Ramshorn Creek Deposits
Ramshorn Creek Placer (Ramshorn Gulch)
Red Fern Mine
Red Pine Mine
Sage Hen Mine
Sandstrom Mine
Sarge Hall Mine
Silver Bullion Mine
Silver Queen
Silversmith Mine
Smuggler Mine (Emma B. Mine)
Snowstorm Mine
Sparrow Placer
Spuhler Gulch Deposit
Spuhler Mine
Sunbeam Mine
Sunnyside Mine
Toledo Mine (Old Toledo Mine)
Unnamed Feldspar Deposit (MRDS - 10197364)
Unnamed Gold (MRDS - 10270635)
Unnamed Gold Deposit (MRDS - 10124277)
Unnamed Gold Deposit (MRDS - 10294639)
Unnamed Gold Mine (MRDS - 10148961)
Unnamed Gold Mine (MRDS - 10197390)
Unnamed Gold Mine (MRDS - 10221395)
Unnamed Gold Mine (MRDS - 10221612)
Unnamed Gold Prospect (MRDS - 10124362)
Vera Mine
Walker
Winchester Mine
Wisconsin Creek Pegmatite
Wisconsin Creek Placer
Wright's Claim
Wyoming Montana Mine

Latitude: 45°28'28"N
Longitude: 112°4'6"W
Decimal Degree (lat, lon): 45.474444444444,-112.06833333333

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.

Acanthite	Allophane	Aragonite	Arsenopyrite	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum
Epidote	Malachite	Mica	None	Not in a structural group	Pyrite	Quartz	Rocksalt	Rutile	Serpentine
Sphalerite	Spinel	Talc	Tetrahedrite	Zircon

Acanthite ()*	Ankerite ()*	Arsenopyrite ()*	Bornite ()*	Calcite ()*
Cerussite ()*	Chalcocite ()*	Chalcopyrite ()*	Chlorargyrite ()*	Chromite ()*
Chrysocolla ()*	Chrysotile ()*	Clinozoisite ()*	Copper ()*	Epidote ()*
Galena ()*	Gold ()*	Graphite ()*	Hematite ()*	Magnetite ()*
Malachite ()*	Muscovite ()*	Pyrite ()*	Quartz ()*	Rutile ()*
Siderite ()*	Sillimanite ()*	Silver ()*	Sphalerite ()*	Talc ()*
Tetrahedrite-(Zn) ()*	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 C Ca Cl Cr Cu Fe H K Mg O Pb S Sb Si Ti Zn Zr

Elements from minerals reported directly at this locality: C O Pb

Structural Groups for minerals in this locality:
Acanthite Allophane Aragonite Arsenopyrite Calcite Chalcopyrite Clay Clinozoisite Copper Corundum
Epidote Malachite Mica None Not in a structural group Pyrite Quartz Rocksalt Rutile Serpentine
Sphalerite Spinel Talc Tetrahedrite Zircon

32 IMA Minerals at location:

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
Acanthite ()*	Acanthite	Ag₂S	70	70	1	231418	2793
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	70	70	1	231418	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS	70	70	1	231397	9052
Bornite ()*	None	Cu₅FeS₄	70	70	2	231380,231406	5516
Calcite ()*	Calcite	Ca(CO₃)	70	70	2	231414,231418	27770
Cerussite ()*	Aragonite	Pb(CO₃)	1585.82	1585.82	0		4979
Chalcocite ()*	None	Cu₂S	70	70	1	231380	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	70	70	6	231377,231397,231398,231406,231414,231418	27198
Chlorargyrite ()*	Rocksalt	AgCl	70	70	1	231406	1382
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	70	70	2	231392,231404	3902
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	70	70	1	231380	3531
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	70	70	1	231388	951
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	70	70	1	231393	1025
Copper ()*	Copper	Cu	70	70	1	231380	3846
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	70	70	1	231406	8173
Galena ()*	Rocksalt	PbS	70	70	6	231371,231383,231394,231398,231414,231428	24243
Gold ()*	Copper	Au	70	70	13	231367,231373,231378,231387,231394,231395,231398,231402,231406,231412,231415,231426,231442	30554
Graphite ()*	None	C	70	70	4	231388,231393,231414,231424	2812
Hematite ()*	Corundum	Fe₂O₃	70	70	1	231406	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	70	70	2	231380,231441	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	70	70	3	231380,231393,231406	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	70	70	1	231411	17380
Pyrite ()*	Pyrite	FeS₂	70	70	7	231370,231380,231397,231406,231414,231418,231428	39462
Quartz ()*	Quartz	SiO₂	70	70	9	231367,231377,231380,231397,231406,231414,231418,231428,231441	61156
Rutile ()*	Rutile	TiO₂	70	70	3	231386,231388,231393	5614
Siderite ()*	Calcite	Fe(CO₃)	70	70	1	231418	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅	70	70	1	231393	1516
Silver ()*	Copper	Ag	70	70	3	231394,231398,231416	5186
Sphalerite ()*	Sphalerite	ZnS	70	70	5	231377,231394,231406,231415,231428	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	70	70	5	231374,231386,231388,231393,231424	3337
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	70	70	1	231406	5317
Zircon ()*	Zircon	Zr(SiO₄)	70	70	1	231388	5251

2 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	Run Num	Age from other Locality	Dated Mineral	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	Age Notes
	Mo-00186	70	70								Yes		Molybdenite, Powellite, Wulfenite	Mo	23236	Madison Co., Montana, USA	Madison County	Gammons et al. (2006)	10.1007/s10230-006-0113-7	MWE25_70
	USGS-Rb-Sr-00420	1585.82	1585.82	1585.82	Rb-Sr	minimum age of intrusion		biotite							159994	Bedford, Sheridan Mining District (Mill Creek Mining District; Wisconsin Mining District), Madison Co., Montana, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...