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Providence Mine, Lincoln Mine group, Stevens Mountain, Papago District (Sierrita District), Sierrita Mts, Pima Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 55' 5'' North , 111° 17' 50'' West
Latitude & Longitude (decimal): 31.9180555556, -111.297222222
 
Ref.: Ransome, F.L. (1922) Ore deposits of the Sierrita Mountains, Pima County, Arizona, in Contributions to Economic Geology (Short Papers and Preliminary Reports), 1921 - Part I.--Metals and Nonmetals except Fuels: U.S. Geological Survey Bulletin 725J: 415.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 132 (Table 4).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039617, MRDS ID #M050505.

A former small surface and underground Pb-Ag-Zn-Cu-Au-Baryte mine group located in the SW ¼ sec. 26 & the SE ¼ sec. 27, T.17S., R.10E., 6½ miles NE of the Palo Alto Ranch. Produced 1885-1931. Owned at times, or in part, by the Lincoln Consolidated Mining Co.; the Nelson Brothers; J.E. Woods; Silverta Mining & Milling Co.; and the Yellow Bird Silver Mines.

Mineralization is oxidized, argentiferous galena and sphalerite with minor copper in spotty replacement bodies in metamorphosed Paleozoic limestone; and argentiferous chalcocite, copper carbonates and oxides in shattered Paleozoic quartzite, and including carbonate boxwork after chalcopyrite. Paleozoic beds infolded in mesozoic sediments and volcanics. Alteration included quartz-sericite-pyrite.

Local structures include Paleozoic beds folded with Mesozoic sediments and volcanics.

Workings include shaft, tunnels, and open cuts. Prospected and worked in the late 1800's for high-grade Pb-Ag ore and sporadically from 1905 to 1931 producing some 65 tons of ore at 14% Cu, 12 oz. Ag/T and minor gold.

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6 entries listed. 3 valid minerals.

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