Mine detail: Copperstone

<< Back to the map

<< Back to browsing

Location:	La Paz County, Arizona, United States, North America
Lat / long:	33.87366, -114.29079
dep_id:	10056413
mrds_id:	TC00084
Commodity type:	metallic and nonmetallic
Major mineral:	Gold
Trace mineral:	Silver, Barium-Barite
Operation type:	Unknown
Production size:	Large ammount of material produced
Development status:	Past Producer
ore:	Chalcopyrite, Gold, Pyrite
gangue:	Amethyst, Barite, Calcite, Chrysocolla, Fluorite, Magnetite, Malachite, Quartz
orebody_fm:	TABULAR
work_type:	Surface
alteration:	Sericitization, Some Chloritization
ore_ctrl:	Faults And Brecciation, Detachment Faulting
Reporter:	Bolm, Karen S., Berger, Mary A., Orris, Greta J.
hrock_type:	Volcanic Breccia (Agglomerate),Quartz Latite,Basalt
Structure:	Moon Mountains Detachment Fault, Probable Fault Separating Jurassic Metamorphosed Volcanic Rocks And Overlying Sedimentary Breccias Derived From Them.
Year first produced:	1987
disc_yr:	1979
References:	Deposit:: WALENGA, KAREN, 1987, NEW OPERATION TO DOUBLE ARIZONA GOLD PRODUCTION: SOUTHWESTERN PAY DIRT, NO. 581, P. 4A-5A. Deposit:: WALENGA, KAREN, 1988, CYPRUS STARTS WORK ON UNDERGROUND MINE AT COPPERSTONE: SOUTHWESTERN PAYDIRT, NO. 592, P. 5A. Deposit:: SPENCER, J.E., DUNCAN, J.T., AND BURTON, W.D., 1988, THE COPPERSTONE MINE: ARIZON* NEW GOLD PRODUCER: ARIZONA BUREAU OF GEOLOGY AND MINERAL TECHNOLOGY FIELDNOTES, V. 18, NO. 2, P. 1-3. Deposit:: PETERSON, E.K., AND DUPREE, J.A., 1993, PRELIMINARY INVESTIGATION OF BULK MINABLE GOLD DEPOSITS, COLORADO RIVER INDIAN RESERVATION, ARIZONA AND CALIFORNIA, IN MANYDEEDS, S.A., AND SMITH, B.D., EDS., MINERAL FRONTIERS ON INDIAN LANDS: BUREAU OF INDIAN AFFAIRS DIVISION OF ENERGY AND MINERAL RESOURCES, P. 35-42. Deposit:: NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P. Deposit:: SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: UNITED STATS BUREAU OF MINES SPECIAL PUBLICATION, 334 P. Deposit:: MINERAL TODAY, 1/90, P. 26. Other Database:: CIMRI Production:: WALENGA, 1987, P. 4A; SAWYER AND OTHERS, 1992; MINERAL TODAY, 1990. Reserve-Resource:: WALENGA, 1988, P. 5A; NIEMUTH, 1987.