California · Sonoma County
Past Producer
Sonoma Co. No. 27
Sonoma County, California, United States
Manganese
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USGS source ↗
Commodities
Primary
Manganese
Commodity type
M
Materials
Other materials
Psilomelane, Pyrolusite
Economic & production
Development status
Past Producer
Identification
Deposit ID
10287374
Region
NA
Data score
D
Coordinates
38.72958, -122.76187
References
BAILEY E H AND HARDEN D R 1975 USGS MINERAL RESOURCE MAP I-9