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Palo Verde Mine, Amole Mine group, Saginaw Hill (Saginaw property), Amole District, Tucson Mts, Pima Co., Arizona, USA

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Ref.: Allen, M.A. (1920), Notes on the Southern Section of the Amole District, Arizona Bureau of Mines Bull. 106: 22-23: 20-21.

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.: 95, 98-99, 101-102, 104-105, 107-109.

Ashley, R.P. (1974) Field Examination (Palo Verde Mine).

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).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10109621, MRDS ID #M050632; and, Dep. ID #10210955, MAS ID #0040190351.

A former small underground Zn-Pb-Cu-Ag-Au mine located in East-central sec. 11, T.15S., R.12E., 8 miles SW of Tucson. Owned at times, or in part, by the Saginaw Mining Co.; and the Tucson Arizona Copper Co.

Mineralization is slightly oxidized sulfides in irregular quartzose, vein-like replacement deposits in limestone lenses in Cretaceous arkose and also along the contact zone of arkose and Laramide intrusive granitic porphyry. The ore zone trends NE. Associated with strong fault gouge and brecciation. Alteration includes quartz-sericite-pyrite.

Workings include an inclined shaft and underground workings. 2 shafts are located about 100 meters to the N, and 100 meters N30W of the main shaft. May be part of the Palo Verde Mine. Shafts are open but are filled with junk. No ore was observed on the dump. Worked intermittently from 1918 through 1954. Total production amounted to some 2,300 tons of ore averaging about 13% Zn, 2.2% Pb, 0.7% Cu, 2.5 oz. Ag/T and 0.06 oz. Au/T.

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