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Silver Thread Mine, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 42' 29'' North , 110° 3' 33'' West
Latitude & Longitude (decimal): 31.7080555556, -110.059166667
Other regions containing this locality:Sonoran Desert, North America

‡Ref.: Church, J.A. (1903) The Tombstone, Arizona, mining district: American Institute of Mining Engineers, Transactions: 33: 18.

Jones, Jr., E.L. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: Plate V.

Butler, B.S., et al (1938b), Geology and ore deposits of the Tombstone district, Arizona, Arizona Bureau of Mines Bull. 143: 46, 87, 98, 107, Pl. III, Pl. IV, Pl. XIV, Pl. XXIII.

Rasor, C.A. (1939), Manganese mineralization at Tombstone, Arizona, Economic Geology: 34: 790-803.

Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 18.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 91.

Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 79 (Table 4).

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

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 396, 424.

MRDS database Dep. ID file #10027023, MRDS ID #M001736; and, Dep. ID #10282620, MAS ID #0040030683.

A former small underground Pb-Ag-Zn-Au-(As-Cd-Sb) mine located in West-central sec. 12, T.20S., R.22E, ¼ mile south of Tombstone and about 500 yards east of the Empire shaft. Owned at times, or in part, by the Tombstone Mill & Mining Co., Tombstone Consolidated Mines Co., Bunker Hill Mines Co., and the Tombstone Development Co.

Mineralization is irregular oxidized orebodies of argentiferous lead and zinc sulfides in Cretaceous Bisbee Group limestone along the crest and limb of an anticlinal roll and along 'northeast' fissures.

Local structures include the East edge of the Bisbee Group outcrop in the Tombstone Basin.

Workings include a shaft(s). A few thousand tons of ore were produced in the late 1880's and a few hundred tons in the 1920's.

Mineral List

5 valid minerals.

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