Commodities
PrimaryZinc, Copper
SecondaryLead, Gold, Silver
Commodity typeM
Deposit
Deposit typeReplacement
Model184: Massive sulfide, kuroko
Deposit sizeS
WorkingsSurface/Underground
Orebody formTABULAR
Ore controlShear Zones
Materials
Ore mineralsChalcocite, Chalcopyrite, Galena, Malachite, Pyrite, Sphalerite, Tetrahedrite
GangueBarite, Calcite, Hematite, Limonite, Quartz, Sericite
Geology
Host rockGreenstone,Schist
Associated rockSlate,Quartzite,Arkose
Tectonic settingIsland Arc
AlterationSilicification, Sericitization, Pyritization, Chloritization. 2500 Ft Long, 800 Ft Wide.
Economic & production
Development statusPast Producer
Production years1935, 1944 - 1945
First production1935
Last production1945
Discovery year1935
Identification
Deposit ID10102860
MRDS IDM009395
Alternate namesBlue Cloud, Red Cloud, Percupine
RegionNA
Data scoreB
Coordinates37.56603, -120.25655
References
BOWEN, O. E. AND CLIFFTON, G. H., 1957 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY, CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 1 & 2 , P. 200 - 202 .ERIC, J. H. AND COX, M. W., 1948 , ZINC DEPOSITS OF THE AMERICAN EAGLE - BLUE MOON AREA, MARIPOSA COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 144 - 150 .CALIF. JOUR. MINES & GEOLOGY, V. 53, NOS.3 & 4, P. 547; ADD. REF.: DMPA APPL'N 2162 - SIERRA ZINC INC. - REPORTED MAY, 1952 BY WEHELT - DMEA INDEX -CALIF. NEV. P. 9ERIC, J. H., AND COX, M. W., 1948 , P. 145 (SEE REF.)