Latitude: 31°46'23"N
Longitude: 110°25'42"W
Ref.: Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 91 (Table 4).
DeRuyter, V.D. (1979) Geology of the Granitic Peak stock area, Whetstone Mountains, Cochise County, Arizona: Tucson, University of Arizona, M.S. thesis, 121 p.: 108, figure 2.
McColly, R.A., and Scott, D.C. (1982) Mineral investigation of the Whetstone Roadless Area, Cochise and Pima Counties, Arizona: U.S. Bureau of Mines Mineral Land Assessment Open File Report MLA 129-82, 22 p.: 5.
Wruke, C.T., et al (1983), USGS MFS Map MF-1614-A, 1:48000 scale map and pamphlet: Plate 1.
Chatman, M.L. (1994) U.S. Bureau of Mines Open File Report Mineral Land Assessment (MLA) 2-94: 10.
Arizona Bureau of Mines files.
MRDS database Dep. ID file #10039621, MRDS ID #M050511; and, Dep. ID #10280504, MAS ID #0040030300.
A former small surface and underground Cu-Ag-Au (W-U) mine located in secs. 20 & 21, T.19S, R.19E. (protracted), approximately 1½ miles SE of Granite Peak, on National Forest land. Discovered 1870. First produced 1918, and produced 1955-1959. Operated at times, or in part, by Galen & Newman and the Mascot Mining Co. and Pursley.
Mineralization is sulfides and copper carbonates and oxides in veinlets and disseminations associated with porphyry dikes cutting Laramide granodiorite.
Virtually all of the visible Cu is in the tactite zone along the north boundary of the granodiorite - observed CPY-MAG, CPY-scarn, MAG-scarn assemblages. No pyrite observed; and very little quartz veinlets. Although New Jersey Zinc drilled the granodiorite along the contact looking for a porphyry copper, there were very few signs of typical hydrothermal-silicate alteration, very few quartz veins and virtually no indication of dissemination.
Workings are comprised of a shallow adit and pits. About 1,045 tons of ore were produced in 1955, 1956, and 1959.
Mineral List
2 entries listed. 2 valid minerals.
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