Commodities
PrimarySulfur-Pyrite, Copper
TertiaryLead
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formLENTICULAR
Ore controlFractures
Materials
Ore mineralsGalena, Pyrite
Geology
Host rockRhyolite · Leona Rhyolite
StructureHayward Fault; Two Parallel Smaller Faults With Horizontal Displacement.
Economic & production
Development statusPast Producer
Production years1925 - 1929
Identification
Deposit ID10102588
MRDS IDM004715
RegionNA
Data scoreB
Coordinates37.88573, -122.26244
References
DAVIS, F.F., 1950 ; MINES AND MINERAL RESOURCES OF ALAMEDA COUNTY: CALIF. JOUR. MINES AND GEOLOGY, VOL. 46 , NO. 2 ; DIV. OF MINES, P. 298GOODWIN, J.G., 1957 ; LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53, NOS. 3 & 4 ; DIV. OF MINES, P. 412LAIZURE, C.V., 1929 ; SAN FRANCISCO FIELD DIV.; 25TH REPT. STATE MIN.; CALIF. DIV. OF MINES, P. 440 .