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Philadelphia Mine (Philadelphia prospect), Anaconda Mine group, Temporal Gulch, Wrightson District, Santa Rita Mts, Santa Cruz Co., Arizona, USA

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‡Ref.: Engineering & Mining Journal (Jan 15, 1910).

Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 235.

Rohrbacker, R.T. (1964) Geology of the Temporal Gulch-Mansfield Canyon area, Santa Cruz County, Arizona: Tucson, University of Arizona, M.S. thesis, 81 p.

Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 88 (Table 4).

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 16 (Table 1).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10186650, MAS ID #0040230316.

A Pb-Ag-Cu-Zn-Au mine located in NW¼ sec. 3, T.21S., R.15E. (Mount Wrightson 15 minute topo map), north of the Anaconda Camp, on National Forest land. Discovered and first worked in 1873. Owned at times, or in part, by John Parks (circa 1882); the Anaconda-Arizona Mining Co.; Altamirano; and the Boulder Mining Co.

Mineralization is a strong vein which dips 70ºSSW. in red tuffaceous andesite. The croppings of the vein, which are not prominent, consist of iron-stained quartz and barite and in some places shows considerable malachite and azurite. The vein is about 2½ feet wide. It is banded and in the oxidized zone is composed mainly of a barite-quartz gangue and sulphides-sulphosalts. The surface ore is all oxidized and carries lead and copper carbonates in a mixture of limonite-stained quartz and barite. The deeper ores were composed of argentiferous galena and tetrahedrite.

Workings include several shafts and drifts. The two deepest shafts are said to be 90 feet deep and the other 60 feet.

Mineral List

7 entries listed. 6 valid minerals.

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