Mine detail: Milton Claim

Previously called 'Redmayne and Mcgonigal Prospect'

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Location

Lat / long:

39.52989, -120.61714

Resource(M)

Primary:	Chromium
Ore:	Chromite
Gangue:	Uvarovite
Orebody form:	LENSE
Discovery year:	1918

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1941
Last production ended:	1941

Geology

Host rock:	Calaveras
Host type:	Dunite
Associated type:	Andesite
Structure:	Two Dominant Directions Of Shearing Found In The Deposit. One Trending N70-75w, The Other Trending N10-20e
Tectonic:	Sierra Nevada Batholith
Alteration processes:	Moderate To Complete Serpentinization Of Host Rock.

References

MRDS	M100435
DEP	10043627
Reference	{Deposit:: RYNEARSON, G.A., 1950, CDMG BULL 134, PART 3, CHAPT. 5, P. 257, 258.}{Deposit:: AVERILL, C.V., 1942, CALIF. JOURNAL OF MINES AND GEOL., V. 38, NO. 1, P. 16.}{Deposit:: STINSON, M.C., 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED.}{Production:: AVERILL, 1942.}{Reserve-Resource:: STINSON, 1975}
Reporter	Oster, Karel L. (Albers, John P.)