California · Amador County
Past Producer

Keystone

Amador County, California, United States
GoldAntimonyArsenic
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
TertiaryAntimony, Arsenic
Commodity typeM
Deposit
Deposit sizeS
Materials
Ore mineralsGold, Pyrite, Stibnite
Geology
Host rockSlate,Greenstone
Economic & production
Development statusPast Producer
Production years1851 TO 1919 ; 1933 TO 1942
Discovery year1851
Identification
Deposit ID10028175
MRDS IDM005016
RegionNA
Data scoreB
Coordinates38.41796, -120.82296
References
CARLSON, D.W. AND CLARK, W.B., 1954 , MINES AND MIN. RES. OF AMADOR COUNTY, CAL: CJMG VOL. 50 , P. 185DOM BULL. 144, P. 215