Commodities
PrimaryGold
SecondarySilver
TertiaryCopper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Materials
Ore mineralsGold, Pyrrhotite
GangueQuartz
Geology
Host rockDiorite
Associated rockDiorite
Economic & production
Development statusPast Producer
Identification
Deposit ID10102802
MRDS IDM006872
Alternate namesAmador - ColumbusColumbus
RegionNA
Data scoreC
Coordinates38.4138, -120.56823
References
CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.; COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P. 38 - 39 , 142 AND PL BLOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P. 246 - 7 , 301CLARK ( 1962 )