Commodities
PrimaryChromium
Commodity typeM
Deposit
Deposit sizeS
Orebody formLENSE
Materials
Ore mineralsChromite
GangueUvarovite
Geology
Host rockDunite · Calaveras
Associated rockAndesite
StructureTwo Dominant Directions Of Shearing Found In The Deposit. One Trending N70-75w, The Other Trending N10-20e
Tectonic settingSierra Nevada Batholith
AlterationModerate To Complete Serpentinization Of Host Rock.
Economic & production
Development statusPast Producer
First production1941
Last production1941
Discovery year1918
Identification
Deposit ID10043627
MRDS IDM100435
Alternate namesRedmayne and Mcgonigal Prospect
RegionNA
Data scoreB
Coordinates39.52989, -120.61714
References
RYNEARSON, G.A., 1950, CDMG BULL 134, PART 3, CHAPT. 5, P. 257, 258.AVERILL, C.V., 1942, CALIF. JOURNAL OF MINES AND GEOL., V. 38, NO. 1, P. 16.STINSON, M.C., 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED.AVERILL, 1942.STINSON, 1975