California · Humboldt County
Occurrence
Sam Brown World War No. 2 Prospect
Humboldt County, California, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Deposit
Deposit size
N
Materials
Ore minerals
Rhodonite
Gangue
Copper, Malachite, Pyrite
Geology
Host rock
Gabbro,Quartzite
Associated rock
Gabbro
Economic & production
Development status
Occurrence
Identification
Deposit ID
10030561
MRDS ID
M008757
Region
NA
Data score
C
Coordinates
41.07872, -123.71003
References
DOM BULL. 152, 1950, PP. 71-72USBM R.I. 5579, P. 6PSFC REPT. FIG. 7,CALIF. DIV. MINES BULL. 179, FIG. 13.: ADD. REF.: USGS MR-23