Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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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:
Stemple Mining District (Fool Hen Mining District), Lewis And Clark Co., Montana, USA


mindat Locality ID: 50273
mindat URL: http://www.mindat.org/loc-50273.html

Tectonic Settings:

Total number of sublocalities beneath "Stemple Mining District (Fool Hen Mining District), Lewis And Clark Co., Montana, USA": 58
Total number of bottom-level sublocalities: 58

Number of Child Localities: 58
Child Localities:
Acme Placer
Alpha Mine
American Boy Mine
Bachelor Gold Mining Company
Badger Mine
Baldy Mountain Claims
Black Sand Placer
Black Watch (Ginger; Wild Rose)
Blue Jay Placer
Blue Star
Blue Star Placer
Bondholder Prospect (Holsclaw Mine)
Butterfly Quartz Lode Occurrence
Canyon Creek Placer
Charley Copper & Silver Claims
Crown Mine
Crumb Mine
Crystal Mine
Cyclone Mine
Dert Gulch Mine
Dovie Placer
Evening Placer
Frisbee Stemple Group
Gold Dollar Mine
Golden Dollar No. 5 Lode Prospect
Golden Feather Placer
Gould Creek
Gravel Range
Guerin Lode Occurrence
Haley Mine
Homestake Lode (Bachelor Mine)
Hubbard Mine (Mill Tunnel)
Jay Gould Mine (Stemple Mine)
Kenneth Placer
King David Lode Occurrence
Last Chance Lode Occurrence
Lucky Marie Placer
Lucky Strike (Velvet; Last Chance; Ace Of Spades)
Mammoth Mine
Margaret Placer
Marguerite Placer
McClellan Mine
Mt. Pleasant
Nakoma Mine (Golconda Mine)
Omega Mine
Oro Fino Mine
Pack Horse Lode Prospect
Panqewasset
Peggy Ann Mine
Poorman Creek Placer
Prize Mine
Red Star (Gold Star; North Star; Red Star MS)
Sieben Ranch Company Exchange Occurrence
Silver Bell Mine
Silver Crescent Tungsten Claims (Cotter Tungsten)
Stemple Mine
Victory Mine
Virginia Creek Placer (Lopear And Specimen Gulches; Tarhead)

Latitude: 46°52'40"N
Longitude: 112°29'38"W
Decimal Degree (lat, lon): 46.877777777778,-112.49388888889

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

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 Au C Ca Cu Fe H Mg O Pb S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteCalciteChalcopyriteCopperMalachiteNoneNot in a structural groupPyriteQuartzRocksalt

11 IMA Minerals at location:
Acanthite  (*)Calcite  (*)Chalcopyrite  (*)Copper  (*)Cuprite  (*)
Dolomite  (*)Galena  (*)Gold  (*)Malachite  (*)Pyrite  (*)
Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S12303352793
Calcite  (*)CalciteCa(CO3)123033527770
Chalcopyrite  (*)ChalcopyriteCuFeS23230333,230335,23034127198
Copper  (*)CopperCu12303333846
Cuprite  (*)Not in a structural groupCu2O12303412970
Dolomite  (*)NoneCaMg(CO3)22230327,2303499895
Galena  (*)RocksaltPbS2230327,23034924243
Gold  (*)CopperAu25230303,230309,230311,230313,230315,230316,230318,230323,230324,230328,230331,230333,230334,230335,230336,230338,230339,230341,230342,230343,230346,230352,230353,230355,23036030554
Malachite  (*)MalachiteCu2(CO3)(OH)25230327,230335,230341,230349,23035312537
Pyrite  (*)PyriteFeS23230334,230341,23034639462
Quartz  (*)QuartzSiO29230315,230318,230326,230333,230334,230335,230341,230346,23035361156



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

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