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Bluebird Mine (Bluebird group), Miami, Miami-Inspiration District, Globe-Miami District, Gila Co., Arizona, USA
Latitude: 33°23'29"N
Longitude: 110°54'11"W
Longitude: 110°54'11"W
Previous operators included Stovall Copper; Sorsen and Williams; Better and Brooks; Charles McGowan and Ranchers Exploration and Development Corporation (1978). Cyprus acquired Inspiration Consolidated Copper Co. on July 1, 1988. Leaching began in 1970; open pit ripping began 1964, with an area 1000 feet by 600 feet.
Mineralization is a massive disseminated copper porphyry ore body, 1066.8 meters long, 304.8 meters wide, and 150 to 650 feet (198.12 meters) thick, striking N20W and dipping 40W, hosted in the Precambrian Pinal Schist, Schultze Granite and Gila Conglomerate. Ore is disseminated in the Schultze Granite and near its contact with Pinal Schist. There was strong oxidation. Some ore lies at surface, some under 400 feet of overburden. Intense fracturing of the rocks in and around the granite porphyry allowed subsequent copper-bearing hydrothermal fluids to penetrate the schist and granite to deposit the copper minerals.
Area structures include a small E-W-trending normal fault, Schultze Granite in irregular contact with a narrow outcrop width of Pinal Schist. A NW-trending fault west of the mine faults Schultze Granite against a narrow outcrop of Gila Conglomerate. In the mine area Schultze Granite is in irregular contact with Pinal Schist.
Workings included small underground workings. The operation was changed to an open pit operation 1066.8 meters long. Last production was from leaching operation.
Mineral List
| Azurite | Chrysocolla | Covellite | Malachite |
4 entries listed. 4 valid minerals.
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References
Ransome, F.L. (1919), The copper deposits of Ray and Miami, Arizona, USGS PP 115, 157 pp.
Peterson, Nels P. (1962) Geology and Ore Deposits of the Globe Miami District, USGS PP 342 : Plate 1.
Potter, S.C. (1972) Geology and Ore Deposit at the Bluebird Mine, Gila County, Arizona (unpublished report for Ranchers Exploration & Development Corp.), 19 pp.
Baer, R. (1977) Trip Notes for the Bluebird Mine, Gila County, Arizona.
Sawyer, M.B., Gurmendi, A.C., Daley, M.R., and Howell, S.B. (1992) Principal Deposits of Strategic and Critical Minerals in Arizona, U.S. Bureau of Mines Special Publication, 334 pp.
U.S. Bureau of land Management District Sheet 155.
Arizona Department of Mineral Resources Bluebird Mine file.
MRDS database Dep. ID #10046327, MRDS ID #M241238.
Peterson, Nels P. (1962) Geology and Ore Deposits of the Globe Miami District, USGS PP 342 : Plate 1.
Potter, S.C. (1972) Geology and Ore Deposit at the Bluebird Mine, Gila County, Arizona (unpublished report for Ranchers Exploration & Development Corp.), 19 pp.
Baer, R. (1977) Trip Notes for the Bluebird Mine, Gila County, Arizona.
Sawyer, M.B., Gurmendi, A.C., Daley, M.R., and Howell, S.B. (1992) Principal Deposits of Strategic and Critical Minerals in Arizona, U.S. Bureau of Mines Special Publication, 334 pp.
U.S. Bureau of land Management District Sheet 155.
Arizona Department of Mineral Resources Bluebird Mine file.
MRDS database Dep. ID #10046327, MRDS ID #M241238.
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New Locality Added: Magura-Hondol, Hunedoara Co., RomaniaFrom David Von Bargen, 25th May 2013 18:42:02