The Star & Excelsior Mine is a copper mine located in Calaveras county, California.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Star & Excelsior Mine MRDS details
Site Name
Primary: Star & Excelsior Mine
Commodity
Primary: Copper
Tertiary: Gold
Tertiary: Zinc
Location
State: California
County: Calaveras
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Kaolinization, Pyritization, Silicification
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chrysocolla
Ore: Chalcopyrite
Ore: Sphalerite
Ore: Pyrite
Ore: Malachite
Ore: Chalcocite
Gangue: Barite
Comments
Comment (Production): ACTIVE 1914 AND 1920'S
Comment (Workings): OLD CAVED 100 FT. SHAFT, AND A NEWER SHALLOWER OPEN SHAFT. TWO OPEN WEST - EXTENDING CROSSCUT ADITS TO THE SOUTH, AND OPEN CUTS.
Comment (Geology): GEOL.DESC: WORKINGS IN QUARTZ AND FELDSPAR PORPHYRY WITHIN FEW HUNDRED FEET OF CONTACT WITH GREENSTONE.
Comment (Deposit): DEPOSIT CONSISTS OF A ZONE OF PYRITIZATION, KAOLINIZATION AND SILICIFICATION CAPPED BY GOSSAN. ANOTHER ZONE IS 200 FT. EAST.
References
Reference (Deposit): CLARK, W. B. AND LYDON, P. A., 1962 , MINES AND MINERALS RESOURCES OF CALAVERAS COUNTY, CALIFORNIA; COUNTY REPT. 2 ; CALIF. DIV. MINES AND GEOLOGY, P. 32 .
Reference (Deposit): HEYL, G. R., 1948 , ZINC - COPPER MINES OF THE QUAIL HILL AREA, CALAVERAS COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 125 - 126 .
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
