Mine detail: New Almaden - San Pedro-Almaden Area

Previously called ''

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Location

Lat / long:

37.17659, -121.8477

Resource(M)

Primary:	Mercury
Ore:	Cinnabar
Gangue:	Calcite, Quartz
Orebody form:	IRREGULAR
Discovery year:	1855

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1850 - 1874, 1884 - 1893

Geology

Host type:	Serpentinite
Structure:	None Apparent
Alteration processes:	Silica Carbonate Alteration Of Serpentine

References

MRDS	M055615
DEP	10103809
Reference	{Deposit:: BAILEY, E. H. AND EVERHART, D. L., 1964, GEOLOGY AND QUICKSILVER DEPOSITS OF THE NEW ALMADEN DISTRICT, SANTA CLARA COUNTY, CALIFORNIA: USGS PROF. PAPER 360, 206 P}{Production:: BAILEY AND EVERHART, 1964}
Reporter	Peterson, Jocelyn A.