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Dimple Mine group (Noscut Mine), Mount Fagan, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA

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‡Ref.: Lee, C.A., and Borland, G.C. (1935) The geology and ore deposits of the Cuprite mining district: Tucson, University of Arizona, M.S. thesis, 54 p.

Creasey, S.C. (1973) Field Examination, Dimple Mine.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 125 (Table 4).

USGS Empire Mountains Quadrangle topo map.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039633, MRDS ID #M050543; and, Dep. ID #10113849, MAS ID #0040190195.

A former small underground Pb-Zn-Ag-Cu-Au-Sb mine group located in sec. 27 and East-central sec. 28, T.17S., R.16E., 7 miles E of Helvetia. Produced 1923-1949. Owned by the Noscut Mining Co. Operated by Terrel & Jarnagin, L.S. Greybill, C.H. Tuck, and Mike Hines.

Mineralization is irregular, lensing replacement deposits of partly oxidized sulfides and sulfosalts along fractures and faults in chloritized and sericitized Cretaceous sediments and volcanics. Strong pyritic alteration, gossan.

Workings include shallow adit/tunnel operations. Originally opened in 1915 with sporadic production through 1949 of some 180 tons of ore averaging about 13% Pb, 11 oz. Ag/T and minor Cu & Zn.

Mineral List

9 entries listed. 7 valid minerals.

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