California · Mendocino County
Occurrence
Shell Rock
Mendocino County, California, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Deposit
Deposit size
N
Economic & production
Development status
Occurrence
Identification
Deposit ID
10031372
MRDS ID
M010090
Region
NA
Data score
D
Coordinates
39.83957, -123.52111
References
CALIF. JOUR. MINES & GEOLOGY, V. 49, NO. 4, OCT. 1953, P. 390CALIF. B. 152, 1950, P. 137; B. 76, 1918, P. 46