A Manganese mine located in the South-central sec. 35, T.4S., R.17W. (protracted). Owned by Neahr, Ruggles, and the Strugess-Worthington Mining Co.
Mineralization is pyrolusite and psilomelane in discontinuous, lenticular shoots of stringers and pods, with calcite, quartz and rock fragments in fracture veins cutting Cretaceous or Tertiary andesitic volcanics.
Workings comprise an open cut operation. This deposit was prospected in the WWI period and produced some 384 long tons of 26% Mn ore in 1954 and 1955.
References
Farnham, L.L. & L.A. Stewart (1958), Manganese deposits of western Arizona, US Bureau of Mines Information Circular 7843: 85.
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: 118 (Table 4).
Mineral List
3 entries listed. 2 valid minerals.
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