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:
Wheatland District, Placer Co., California, USA

Oldest recorded age at locality: 170
Youngest recorded age at locality: 170

mindat Locality ID: 265949
mindat URL: http://www.mindat.org/loc-265949.html

Tectonic Settings:

Total number of sublocalities beneath "Wheatland District, Placer Co., California, USA": 19
Total number of bottom-level sublocalities: 16

Number of Child Localities: 3
Child Localities:
Ewing
Kilaga Springs
Sheridan

Latitude: 38°59'8"N
Longitude: 121°18'4"W
Decimal Degree (lat, lon): 38.985555555556,-121.30111111111
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 C Cu Fe H Mg O Pb S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcanthiteChalcopyriteClayCopperCoquimbiteKaoliniteNoneNot in a structural groupPyriteQuartz
RocksaltSphaleriteTalc

16 IMA Minerals at location:
Alunogen  (*)Azurite  (*)Chalcanthite  (*)Chalcocite  (*)Chalcopyrite  (*)
Copper  (*)Coquimbite  (*)Cuprite  (*)Galena  (*)Gold  (*)
Kaolinite  (*)Pyrite  (*)Quartz  (*)Silver  (*)Sphalerite  (*)
Talc  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alunogen  (*)Not in a structural groupAl2(SO4)3(H2O)12·5H2O1167804272
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)217017011678125509
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O1701701167812925
Chalcocite  (*)NoneCu2S17017011678125707
Chalcopyrite  (*)ChalcopyriteCuFeS21701703167802,167803,16781227198
Copper  (*)CopperCu17017011678123846
Coquimbite  (*)CoquimbiteAlFe3(SO4)6(H2O)12·6H2O1701701167812136
Cuprite  (*)Not in a structural groupCu2O17017011678122970
Galena  (*)RocksaltPbS170170116781224243
Gold  (*)CopperAu1701708167799,167802,167803,167806,167810,167813,167815,16781630554
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)417017011678125591
Pyrite  (*)PyriteFeS21701702167803,16781239462
Quartz  (*)QuartzSiO21701702167802,16781261156
Silver  (*)CopperAg17017011678125186
Sphalerite  (*)SphaleriteZnS170170116781221482
Talc  (*)Clay TalcMg3Si4O10(OH)217017011678123337


2 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
vms-01028170170Jurassic       S85223Dairy Farm Mine (Trent; Vantrent Mine), Kilaga Springs, Wheatland District, Placer Co., California, USADairy FarmMoiser et al. (2009) USGSOFR2009_1034 
vms-01045170170Jurassic       S85950Valley View Mine (Whiskey Hill Mine; Whiskey Diggings; Whislcey Diggings; Harpening Kilaga Springs; Harpending Mine; Bonanza [?]), Kilaga Springs, Wheatland District, Placer Co., California, USAValley ViewMoiser et al. (2009) USGSOFR2009_1034 

All locality data graciously provided by mindat.org

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