California · Stanislaus County
Producer

Black Bear Mine

Stanislaus County, California, United States
Chromium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryChromium
Commodity typeM
Deposit
Deposit sizeS
Orebody formLENSE
Ore controlShear Zone
Materials
Ore mineralsChromite
Geology
Host rockDunite · Franciscan
Associated rockDunite
AlterationSerpentinized Dunite
Economic & production
Development statusProducer
First production1918
Identification
Deposit ID10043421
MRDS IDM100176
RegionNA
Data scoreC
Coordinates37.39798, -121.41213
References
WALKER, G.W. AND GRIGGS, A.B., 1953, GEOL. INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134, PART II, CHAPT. 2, P. 74, 75, 88