California · Alameda County
Occurrence
Alma
Alameda County, California, United States
Sulfur-Pyrite
Copper
Silver
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USGS source ↗
Commodities
Primary
Sulfur-Pyrite, Copper, Silver
Commodity type
M
Deposit
Deposit size
N
Economic & production
Development status
Occurrence
Discovery year
1892
Identification
Deposit ID
10027996
MRDS ID
M004711
Region
NA
Data score
D
Coordinates
37.79657, -122.17937
References
CALIF. JOUR. MINES & GEOL. V. 46, NO.2, APRIL 1950, P.296, 305 & 306, 340, PL. 58DOM BULL. 144, P. 212 (SHOWS MANY OTHER REFS)USBM IC-7898,P.5