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Cuprite Mine group (Wilkinson group; Detroit Mine; Emerald group; Little Giant Extension Mine), Cunningham Pass District, Harcuvar Mts, La Paz Co., Arizona, USA

Latitude: 33°57'11"N
Longitude: 113°33'50"W
‡Ref.: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 144 (Table 4).

Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 8 (Table 1).

Yale Peabody GNIS database.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10064829, MRDS ID #TC39709; and, Dep. ID #10137333, MAS ID #0040120199; and, Dep. ID #10282577, MAS ID #0040120179.

A former surface and underground Cu-Au-Ag-Fe-Baryte mine located in the NW¼ sec. 13, T7N, R13W (Salome 15 minute topo map). Owned at times, or in part, by Wilkinson; Josephi; Kane; Cuprite Investment Co.; Prescott; and, Nohlcheck. NOTE: Alternate coordinates provided: 33.95N, 113.87778W.

Mineralization is spotty, oxidized copper ores, with high gold values, associated with strong showings of specular hematite in fissure veins along a strong NW-striking fault zone, cutting Precambrian metamorphics. Intrusions of diorite and granitic dikes. High gold values in specular hematite near the surface. The gangue is baryte.

Originally prospected in the early 1900's and worked intermittently by shallow tunnels, open cuts and shafts from 1903 through 1942. Produced some 430 tons of ore averaging about 5.5% Cu, 0.65 oz. Au/T, and 0.3 oz. Ag/T.

Mineral List

Baryte
Chalcocite
Chalcopyrite
Hematite
var: Specularite

Siderite


5 entries listed. 4 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Arizona, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 29th May 2011 11:01:50
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