Commodities
PrimaryMercury
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Ore controlLocal Changes In Attitude Of Faults
Materials
Ore mineralsCinnabar, Mercury
GangueChalcedony, Pyrite, Quartz
Geology
Host rockSerpentinite
StructureSerpentine - Sandstone Contact
AlterationSilica Carbonate Alteration Of Serpentine
Economic & production
Development statusPast Producer
Production years1901 - 1906, 1909 - 1910, 1914, 1916 - 1919, 1931 - 1932, 1934 - 1935, 1941 - 1944
Discovery year1860
Identification
Deposit ID10040834
MRDS IDM055709
Alternate namesPioneer
RegionNA
Data scoreB
Coordinates38.76294, -122.75913
References
HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252BAILEY, E. H., USGS, PERSONAL FILESBAILEY, E. H., 1946, QUICKSILVER DEPOSITS OF THE WESTERN MAYACMAS DISTRICT, SONOMA COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 199 - 230BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.5) HONKE, M.T., JR. AND VER PLANCK, W.E., JR., 1950, MINES AND MINERAL RESOURCES OF SONOMA COUNTY, CALIF.: CJMG, V. 46, P. 98-1056) RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486USBM DATA