Old Guard Mine (Royal Guard Mine), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA

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‡Ref.: Butler, B.S., Wilson, E.D., and Rasor, C.A. (1938b), Geology and ore deposits of the Tombstone district, Arizona, Arizona Bureau of Mines Bull. 143: 46-48, 78, Pl. III, IV & XII.

Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 77 (Table 4).

Williams, S.A. (1978), Khinite, parakhinite, and dugganite, three new tellurates from Tombstone, Arizona, American Mineralogist: 63: 1016-1019.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 209, 267, 320, 350.

Arizona Bureau of mines files.

MRDS database Dep. ID file #10027015, MRDS ID #M001721; and, Dep. ID #10158768, MAS ID #0040030665.

A former small underground Ag-Au-Pb-Mn mine located in the SW ¼ sec. 11 and sec. 14, T.20S., R.22E, ¾ mile SW of Tombstone, on private land. Located directly between the Herschel Mine and the Lucky Cuss Mine. Produced 1905-1940. Owned at times, or in part, by the Old Guard Mining Co., Imperial Guard Mining Co., Silver Bar Mining Co., and the Tombstone Silver Fields Mining Co.

Mineralization is a replacement deposit with oxidized oreshoots containing argentiferous lead and manganese ores along the Lucky Cuss fault zone at junctions with intersecting fissures. The ore zone strikes NNE and dips 70-75E. Host rock units are shale and limestone.

Workings include an inclined shaft. Some 2,000 tons of ore were produced intermittently between 1905 and 1940.

Mineral List

Bromargyrite Chlorargyrite Chrysocolla

Dugganite Gold Khinite (TL)

Parakhinite Quartz Quetzalcoatlite

Tenorite Tlapallite Xocomecatlite

12 entries listed. 12 valid minerals. 1 type locality (valid mineral).