MiersiteMildren Mine, Mildren Mine group, Ko Vaya, Cababi District, Comobabi Mts, Tohono O'odom Indian Reservation, Pima Co., Arizona, USA
Photo: Bruce Murphy 2007 Latitude: 32°2'19"N
Longitude: 111°55'45"W
‡Ref.: MacKallor, J.A. (1957) Geology of the western part of the Cobabi mining district, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 108 p.
Williams, S.A. (1962) The mineralogy of the Mildren and Steppe mining districts, Pima County, Arizona: Tucson, University of Arizona, Ph.D. dissertation, 145 p.
Williams, S.A, (1963), Oxidation of sulfide ores in the Mildren and Steppe mining districts, Pima County, Arizona, Economic Geology: 58: 1119-1125.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 112, 121, 126, 128, 146, 149, 153, 163, 169, 174, 186, 187-188, 194, 196, 207, 220, 229, 233, 235, 238, 242, 251, 259, 262, 274, 275, 278, 279, 291, 298, 300, 302, 307, 321, 344, 357, 370, 374, 385, 387, 411, 420, 426.
Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).
MRDS databaseDep. ID file #10039661, MRDS ID #M050610.
A former small surface and underground Pb-Ag-Au-Cu-Zn-V-Mo mine located center of E, sec. 16 & sec. 15, T16S, R4E. Produced 1932-1934 & 1940-1941. Operators included Wayne Mine Co., Dunn, and the Mildren Mining Co.
Mineralization is a vein deposit with ore in pods and lenses. The ore body strikes N25W and dips 75NE. Ore control was brecciated qartz fissure veins. Alteration was oxidation and leaching of wall rock.
Workings included shafts and pits.
Mineral List
52 entries listed. 49 valid minerals.
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