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Berkley Mine, Baboquivari District, Baboquivari Mts, Pima Co., Arizona, USA

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Ref.: Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 108 (Table 4).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10026904, MRDS ID #M000926; and, Dep. ID #10113229, MAS ID #0040190117.

A former small Cu-Ag-Au-Pb-Zn mine located in the NE ¼ sec. 21, T.20S., R.7E., 14 miles NW of Sasabe. Owned by Mr. Filiberto Verduzco, operated by Hickey; Siebert; and, Chaves (1937 - ?).

Mineralization is scattered bunches of oxidized pyrite and base metal sulfides in weathered, coarse-grained quartz and calcite along fault fissures in partly metamorphosed Cretaceous sediments (conglomerate, graywacke, shale, arkose, andesite flows, breccias, and rhyolite tuff) cut by intrusive dikes.

Workings include shallow openings. Produced some 200 tons of ore averaging about 2.5% Cu, 0.04 oz. Au/T and 6.5 oz. Ag/T, that was shipped in 1936-1937.

Mineral List

2 entries listed. 2 valid minerals.

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