Commodities
PrimaryCopper
SecondaryGold, Silver
Commodity typeM
Deposit
Deposit typeVein
Model184: Massive sulfide, kuroko
Deposit sizeS
WorkingsSurface/Underground
Orebody formIRREGULAR
Ore controlFissures
Materials
Ore mineralsBornite, Chalcopyrite, Pyrite
GangueQuartz
Economic & production
Development statusPast Producer
Discovery year1875
Identification
Deposit ID10031668
MRDS IDM010821
Alternate namesCopper Claim, Imperial Paint and Copper., Spense Mineral San Francisco Copper Co.
RegionNA
Data scoreB
Coordinates39.11545, -121.2716
References
AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 191 - 194MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY; 16TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 90 .CALIF. JOUR. MINES & GEOLOGY, V. 37, NO. 3, JULY 1941, P. 464; ADD. REF.: REPORT OF STATE MINERALOGIST XXVI; INDUSTRIAL SERVICE-METALLIFEROUS II-C, P. 48; FOLIO 18