Mine detail: Black Oak

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Location: Sonoma County, California, United States, North America
Lat / long: 38.83099, -122.83302
dep_id: 10040821
mrds_id: M055696
Commodity type: metallic
Major mineral: Mercury
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Cinnabar
conc_proc: Hydrothermal Solutions
ore_ctrl: Fault Gouge
Reporter: Peterson, Jocelyn A.
hrock_type: Chert
arock_type: Volcanic Rock (Aphanitic)
Structure: Fractures In Chert
disc_yr: 1940
discr: Ralph E. Thompson
References:
  • Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252
  • Deposit:: BAILEY, E. H., USGS, PERSONAL FILES
  • Production:: HOLMES, 1965
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