Latitude: 34°3'11"N
Longitude: 113°47'2"W
‡Ref.: Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 120-122.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 44, 96.
Harrer, C.M. (1964), Reconnaissance of Iron Resources in Arizona, US Bureau of Mines Information Circular 8236: 127.
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: 163 (Table 4).
Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 205.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10027051, MRDS ID #M001815.
A former underground Cu-Au-Ag-Baryte-Fe-Fluorspar mine located in the center of E sec. 13, T8N, R15W, 20 air miles NW of Wenden, on BLM-administered land. Location in ABGMT Bull. 192 is too far east. Owned and operated by the Corona Copper Co. of Arizona.
Mineralization is a vein deposit with spotty (vugs and irregular masses), oxidized copper minerals with strong hematite and quartz and local barite, minor fluorite, and traces of sulfides in irregular fault veins or replacement deposits in Precambrian gneiss and schist and granitic breccia, cut by pegmatite, aplite and amphibolite dikes. The ore zone is 0.1 meters wide, strikes S35E, and dips 80NE. Mineralization associated with low-angle detachment faulting. Orebodies are within and immediately above the micro-brecciated detachment surface; irregular hydrothermal replacement. Some epidote and chlorite. It occupies a slightly mineralized fault plane of no great magnitude in the gneiss.
Workings are shafts sunk in the 1890's into the early 1900's, during prospecting, and amount to 121.92 meters in length and 38.1 meters deep. A small amount of ore was produced averaging about 16% Cu, 0.8 oz. Au/T, and 1.3 oz. Ag/T in 1907.
Mineral List
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