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 Co., Wyoming, USA

Oldest recorded age at locality: 2858.62
Youngest recorded age at locality: 2118.58

mindat Locality ID: 21032
mindat URL: http://www.mindat.org/loc-21032.html

Tectonic Settings:

Total number of sublocalities beneath "Sheridan Co., Wyoming, USA": 50
Total number of bottom-level sublocalities: 49

Number of Child Localities: 49
Child Localities:
Arno Quarry
Big Horn Mining District
Big Horn Mountain
Cooper Claim
East Fork; Big Goose Creek Mine
Gold Standard Placers
Grubstake Syndicate Occurrence
Guernsey Stone Quarry (Tongue River Project)
Little Falls Claim
Madalynna Claim
Mosaic Claim
Nickel And Copper Refining Company Occurrence
Rainbow Claims
Sheridan
Tongue River Stone Company
Unidentified Iron Prospect (MRDS - 10096629)
Unidentified Occurrence (MRDS - 10093839)
Unidentified Prospect (MRDS - 10100254)
Unknown Clay - Bentonite (MRDS - 10157048)
Unknown Clay - Bentonite (MRDS - 10206377)
Unknown Clay - Bentonite (MRDS - 10206555)
Unknown Clay - Bentonite (MRDS - 10278780)
Unknown Clay - General (MRDS - 10206000)
Unknown Copper Occurrence (MRDS - 10181873)
Unknown Dolomite Occurrence (MRDS - 10230541)
Unknown Dolomite Occurrence (MRDS - 10279022)
Unknown Gypsum-Anhydrite Occurrence (MRDS - 10279332)
Unknown Iron - Copper Occurrence (MRDS - 10279040)
Unknown Iron Occurrence (MRDS - 10205971)
Unknown Iron Occurrence (MRDS - 10230725)
Unknown Limestone - General Occurrence (MRDS - 10181518)
Unknown Stone (MRDS - 10133079)
Unknown Stone Occurrence (MRDS - 10181439)
Unknown Stone Occurrence (MRDS - 10230590)
Unknown Uranium (MRDS - 10181602)
Unknown Uranium (MRDS - 10278775)
Unknown Uranium Occurrence (MRDS - 10206564)
Unknown Uranium Occurrence (MRDS - 10279017)
Unnamed Gold (MRDS - 10181789)
Unnamed Gold (MRDS - 10230164)
Unnamed Gypsum-Anhydrite Occurrence (MRDS - 10182003)
Unnamed Gypsum-Anhydrite Occurrence (MRDS - 10205961)
Unnamed Iron Occurrence (Leopard Rock Quarry; MRDS - 10254224)
Unnamed Iron Occurrence (MRDS - 10206481)
Unnamed Iron Occurrence (MRDS - 10206552)
Unnamed Stone - Dimension Occurrence (MRDS - 10230628)
Unnamed Stone - Dimension Occurrence (MRDS - 10303421)
Walkers Mine
Wilcox - People Prospect

Latitude: 44°46'42"N
Longitude: 107°20'53"W
Decimal Degree (lat, lon): 44.778333333333,-107.34805555556

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 Al Au Ca Ce Cu Fe H Mg Nb O S Si Ta Th Ti U W Y 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChloriteClayColumbiteCopperCorundumGypsumNickelineNonePyriteQuartz
Scheelite

11 IMA Minerals at location:
Clinochlore  (*)Copper  (*)Euxenite-(Y)  (*)Gold  (*)Gypsum  (*)
Hematite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Scheelite  (*)
Silver  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)812936971756
Copper  (*)CopperCu12936933846
Euxenite-(Y)  (*)ColumbiteY(NbTi)O61293701414
Gold  (*)CopperAu5293693,293694,293698,293699,29370030554
Gypsum  (*)GypsumCa(SO4)·2H2O12937026890
Hematite  (*)CorundumFe2O32293704,29370514640
Pyrite  (*)PyriteFeS2129369339462
Pyrrhotite  (*)NickelineFe7S812937069056
Quartz  (*)QuartzSiO25293693,293694,293700,293704,29370561156
Scheelite  (*)ScheeliteCa(WO4)12936994894
Silver  (*)CopperAg12936935186



4 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
USGS-Rb-Sr-006942848.892728.892788.89±60Rb-Srage of metamorphic crystallizationwhole rock     174146Unknown Dolomite Occurrence (MRDS - 10279022), Sheridan Co., Wyoming, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-006952858.622650.622754.62±104Rb-Srage of metamorphic crystallizationwhole rock     174146Unknown Dolomite Occurrence (MRDS - 10279022), Sheridan Co., Wyoming, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-005532188.582118.582153.58±35Rb-Srage of intrusionplagioclase     174324Unknown Iron Occurrence (MRDS - 10205971), Sheridan Co., Wyoming, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-005542188.582118.582153.58±35Rb-Srage of intrusionaugite   Augite  174324Unknown Iron Occurrence (MRDS - 10205971), Sheridan Co., Wyoming, USA USGS-Rb-Sr USGS-Rb-Sr 


SampleSource LocalityReference URL


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