Mine detail: Patriquin Mine

Previously called 'FranciscanPaloma Mining Co.PittsCholame - Parkfield'

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Location

Lat / long:

35.95996, -120.42236

Resource(M)

Primary:	Mercury
Ore:	Cinnabar
Gangue:	Barite, Chalcedony, Metacinnabar, Opal, Pyrite, Quartz, Sulfur
Orebody form:	IRREGULAR
Discovery year:	1873

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1873, 1908, 1915-1918, 1920, 1922-1925, 1927, 1930-1932, 1934-1939, 1943-1944
First production started:	1873

Geology

Host rock:	Franciscan Formation Jur Serpentine And Carbonate Rock
Host type:	Carbonate
Structure:	San Andreas Fault, Ne - Dipping Thrust Fault , Intersecting Faults
Tectonic:	Coast Ranges
Alteration processes:	Silica - Carbonate From Serpentine

References

MRDS	M055489
DEP	10040637
Reference	{Deposit:: HART, E. W., 1966, MINES AND MINERAL RESOURCES OF MONTEREY COUNTY, CALIFORNIA: CDMG COUNTY REPORT 6}{Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252.}{Deposit:: BAILEY, E. H., U.S.G.S. PERSONAL FILES}{Production:: BAILEY, USBM MINERALS YEARBOOKS}{Reserve-Resource:: BAILEY, 1942}
Reporter	Gassaway, J. S.