Eureka-Marble Mine group, Salero Hill (Salero Mountain), Salero area, Tyndall District, Santa Rita Mts, Santa Cruz Co., Arizona, USA

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‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 212.

Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 85 (Table 4).

U.S. Bureau of Mines field notes, AG12.

Arizona Bureau of Mines card file Santa Cruz County.

MRDS database Dep. ID file #10283164, MAS ID #0040230185.

A former underground Cu-Pb-Zn-Ag-Au mine group located in the NE¼NE¼ sec. 24, T.21S., R.14E, on National Forest land. Owned at times, or in part, by Clark & Peterson; Ferry; Blake; Salero Mines Co.; Gardner; Tobin & Pond; Henderson; Kolberg; and the Eureka Mining & Milling Co.

Mineralization is partly oxidized sulfides and sulfosalts, with supergene enrichment of silver, in a crushed, banded quartz gangue, recemented with iron oxide and silica, in a fissure zone cutting Laramide diorite. Strong pyrite gossan.

Workings include shaft operations. Prospected as early as the 1850's and worked intermittently through 1942. Produced some 950 tons of ore averaging about 12% Pb, 22oz. Ag/T, and minor Cu and Au.

Mineral List

Mineral list contains entries from the region specified including sub-localities

Acanthite Azurite Chalcopyrite

Chrysocolla Covellite ? Galena var: Argentiferous Galena

Hematite var: Specularite Limonite Malachite

Pyrite Sphalerite Tetrahedrite

12 entries listed. 9 valid minerals.

Localities in this Region

USA Arizona Santa Cruz Co. Santa Rita Mts Tyndall District Salero area Salero Hill (Salero Mountain) Eureka-Marble Mine group Eureka Mine (Old Mexican Mine) Highside Mine (Highside claim) Marble claim Thunderer Mine