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:
French Gulch, French Gulch District, Klamath Mts, Shasta Co., California, USA


mindat Locality ID: 209200
mindat URL: http://www.mindat.org/loc-209200.html

Tectonic Settings:

Total number of sublocalities beneath "French Gulch, French Gulch District, Klamath Mts, Shasta Co., California, USA": 32
Total number of bottom-level sublocalities: 31

Number of Child Localities: 23
Child Localities:
American Mine (American Vein; Old American Mine; French Gulch Mine)
Auclair Suction Dredge Site
Bodie Mine
Double Header Mine (Celestine Mine)
Evening Star Mine (1)
Franklin Mine (Franklin Vein; Franklin And Milkmaid Mine; Milkmaid Mine)
Gold King Placer Mine
Greenhorn Mine (Greenhorn Vein; Willow Creek Mines Inc.; Warren Brothers)
Halcyron Mine (Haleyon Mine)
Highland Mine (Hightower Mine)
Hoboe Mine
Merry Mountain
New York & Skylark Mine
North Star And Virginia Mine (North Star Mine)
Philadelphia Mine (Philadelphia Vein; Philadelphia And Roosevelt Mine)
South Star Mine
St. Jude Mine (Vogt Mine; Philadelphia And Roosevelt Mine [?])
Susan E Placer Mine
Tabowle Mines Incorporated
Three Sisters Mine (Three Sisters Veins)
Unnamed Au Mine (31)
Unnamed Au Occurrence (12)
Washington Mine (Washington Vein)

Latitude: 40°42'16"N
Longitude: 122°39'38"W
Decimal Degree (lat, lon): 40.704444444444,-122.66055555556

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: Al As Au C Ca Cu Fe H O Pb S Si W Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneArsenopyriteCalciteChalcopyriteCopperMalachiteNickelineNoneNot in a structural groupPyrite
QuartzRocksaltScheeliteSphalerite

17 IMA Minerals at location:
Arsenopyrite  (*)Azurite  (*)Bornite  (*)Calcite  (*)Chalcocite  (*)
Chalcopyrite  (*)Chrysocolla  (*)Copper  (*)Cuprite  (*)Galena  (*)
Gold  (*)Malachite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Scheelite  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS11767479052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)211767265509
Bornite  (*)NoneCu5FeS411767265516
Calcite  (*)CalciteCa(CO3)117672427770
Chalcocite  (*)NoneCu2S11767265707
Chalcopyrite  (*)ChalcopyriteCuFeS22176726,17674427198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O11767263531
Copper  (*)CopperCu11767263846
Cuprite  (*)Not in a structural groupCu2O11767262970
Galena  (*)RocksaltPbS3176719,176724,17674424243
Gold  (*)CopperAu26176719,176720,176721,176722,176723,176724,176725,176727,176728,176729,176731,176732,176733,176734,176736,176737,176740,176741,176742,176743,176744,176745,176746,176747,176748,17675030554
Malachite  (*)MalachiteCu2(CO3)(OH)2117672612537
Pyrite  (*)PyriteFeS25176719,176724,176726,176729,17674739462
Pyrrhotite  (*)NickelineFe7S811767269056
Quartz  (*)QuartzSiO213176722,176724,176726,176727,176728,176729,176732,176736,176741,176743,176744,176746,17674761156
Scheelite  (*)ScheeliteCa(WO4)11767504894
Sphalerite  (*)SphaleriteZnS117672421482



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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