California · Sonoma County
Past Producer
Black Oak
Sonoma County, California, United States
Mercury
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USGS source ↗
Description
Ralph E. Thompson
Commodities
Primary
Mercury
Commodity type
M
Deposit
Deposit size
S
Ore control
Fault Gouge
Materials
Ore minerals
Cinnabar
Geology
Host rock
Chert
Associated rock
Volcanic Rock (Aphanitic)
Structure
Fractures In Chert
Economic & production
Development status
Past Producer
Discovery year
1940
Identification
Deposit ID
10040821
MRDS ID
M055696
Region
NA
Data score
C
Coordinates
38.83099, -122.83302
References
HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252BAILEY, E. H., USGS, PERSONAL FILESHOLMES, 1965