Old Mission Mine (Old Bat Mine), Amole Mining District, Tucson Mountains, Pima County, Arizona, USAi

Regional Level Types
Old Mission Mine (Old Bat Mine)	Mine
Amole Mining District	Mining District
Tucson Mountains	Mountain Range
Pima County	County
Arizona	State
USA	Country

‡Ref.: Jenkins, O.P., and Wilson, E.D. (1920) A geological reconnaissance of the Tucson and Amole Mountains, with Notes on the southern section of the Amole mining district, by M.A. Allen: Arizona Bureau of Mines Bulletin no. 106, 29 p.: 6, Plate I.

Kinnison, J.E. (1958) Geology and ore deposits of the southern section of the Amole mining district, Tucson Mountains, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 126 p.: 101, 112-113.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 102 (Table 4).

Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp.

Peirce, H. Wesley (1990), Arizona Geological Survey Industrial Minerals card file.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039674, MRDS ID #M050630; and, Dep. ID #10234467, MAS ID #0040190341.

A former small surface and underground Cu-Ag-Pb-Au-Mn-Baryte mine located in East-central sec. 33, T.14S., R.13E. (Cat Mountain 7.5 minute topo map). Owned by Pelligren.

Mineralization is copper oxides, cerussite, acanthite, chlorargyrite, barite, hematite, and jasper in a narrow fissure vein of massive manganiferous siderite in Cretaceous Cat Mountain Rhyolite. Ore control was bedding (Cutaxitic structure). Alteraton was argillitic and silicification. The ore body is 110 meters long, 1.22 meters wide and 2 meters thick and has a strike of approximate NE and dip of a few degrees to the NW.

The vein is subparallel to the cutaxitic structurem in welded tuff host rock but in detail contacts are cross-cutting. Wallrock weakly silicified to weakly argillized. The vein is sheeted, locally containing stringers of purplish-red to dark brown (heavily limonitic), weakly silicified wall rock. Locally, vein material cements wall rock breccia. 30 meters SE of the central part of the vein is a shallow prospect shaft with minor black calcite on the dump. The vein in this pit is probably another vein about 10 meters below the main vein.

Workings include 7 tunnels, one tunnel plus perpendicular cut, and 2 prospect pits. The maximum exposed length of the vein is approximately 100-110 meters, but prospect pits continue both to the E and W of the vein, along the hillside, for 200 meters. Sporadic production occurred in 1920-1921, 1923, and 1937-1938. Total production has been some 150 tons of ore averaging about 1% Cu, 0.3% Pb, 10 oz. Ag/T, and 0.1 oz. Au/T.

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Link to USGS MRDS:	10039674

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