Mine detail: Butler Estate Mine

Previously called 'MistakenHolmanJames-Thickstun Mines'

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Location

Lat / long:

36.31217, -120.54792

Resource(M)

Primary:	Chromium
Ore:	Chromite, Uvarovite
Gangue:	Antigorite, Calcite, Chrysotile, Magnesite, Magnetite, Talc
Orebody form:	PIPE, LENSES
Discovery year:	1951

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer

Geology

Host rock:	Panoche Shale;Franciscan Formation
Host type:	Dunite,Serpentinite
Structure:	Serpentine In Fault Contact With Shale. Fault Dips Steeply To The South.

References

MRDS	M100121
DEP	10043384
Reference	{Deposit:: STINSON, M. C., 1976, MINERAL PROPERTY REPORT, CDMG UNPUBLISHED REPORT.}{Deposit:: CDMG SR 71, 19 P.}
Reporter	Oster, Karel L. (Albers, John P.)