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Alonah Mine (Alonah group of claims), Kofa Game Range, Alamo Springs District, Kofa Mts (S.H. Mts), La Paz Co., Arizona, USA

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‡Ref.: Jones, E.L., Jr. (1915), A Reconnaissance in the Kofa Mountains, Arizona, USGS Bull. 620: 164.

Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 120.

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: 115 (Table 4).

Yale Peabody GNIS database.

MRDS database Dep. ID file #10027701, MRDS ID #M003869; and, Dep. ID #10113861, MAS ID #0040120021.

A surface Cu-Fe mine/prospect comprised of several claims located in sec. 25, T1N, R16W, south of the road between the Cemitosa tanks and Alamo Spring, about 5 miles E of Ocotillo, on federal land. Located in the Alamo region.

Mineralization is a replacement deposit with an irregular ore body(ies) and has produced small seams and replacements of the sheared granite by oxidized copper minerals and disseminated magnetite, but the copper content is low.

Geology is sheared and altered granite apparently along the same shear zone as the Alamo group. Along this zone, the feldspar of the granite is, in places, completely sericitized and the mafic minerals are altered to chlorite and epidote.

Workings are shallow holes/openings.

Mineral List

4 entries listed. 2 valid minerals.

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