Mine detail: Little Bonanza

Location:	San Luis Obispo County, California, United States, North America
Lat / long:	35.58718, -120.91709
dep_id:	10040884
mrds_id:	M055763
Commodity type:	metallic
Major mineral:	Mercury
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Cinnabar
gangue:	Kaolinite, Pyrite, Quartz
orebody_fm:	IRREGULAR
work_type:	Unknown
alteration:	Silica Carbonate Alteration Of Serpentine
conc_proc:	Hydrothermal Solutions
ore_ctrl:	Brecciation
Reporter:	Peterson, Jocelyn A.
hrock_unit:	Franciscan Complex
hrock_type:	Serpentinite,Chert
disc_yr:	1862
prod_yrs:	1900 - 1905, 1908, 1911 - 1917, 1919, 1930 - 1934, 1937 - 1939, 1941 - 1942
References:	Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252 Deposit:: ECKEL, E. B., YATES, R. G., AND GRANGER, A. E., 1940, QUICKSILVER DEPOSITS IN SAN LUIS OBISPO COUNTY AND SOUTHWESTERN MONTEREY COUNTY, CALIFORNIA: USGS BULL. 922 - R, P. 515 - 580 Deposit:: BAILEY, E. H., USGS, PERSONAL FILES Deposit:: FRANKE, H.A., 1935, MINES AND MINERAL RESOURCES OF SAN LUIS OBISPO COUNTY, CALIF.: CJMG, V. 31, P. 434-455 Deposit:: 5) BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P. Deposit:: 6) RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486 Production:: USBM DATA