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American Mine | |
Alternate NamesNone CompanyMarcia Bros., Giacoma5. Mining District and MinesHarshaw District Arizona Geological Survey Mining dataLocation23S 18E5 31.45431, -110.723457 Mineral ProductsAg, Pb, Zn, Cu-, Au-.5 GeologyLensing quartz vein and replacement lenses with argentite, cerargyrite, pyrite, sphalerite, galena, and tetrahedrite in a silicified limestone conglomerate within Cretaceous andesite. Spotty high grade silver values in oxidized surface zone. Closely associated Jurassic - Triassic volcanics.5 Type of Operation and ProductionTunnel, adit, shaft, and glory hole operations. Produced intermittently, from 1880's to 1943, some 7,800 tons of ore averaging about 21 oz. Ag/T, 2% Pb, minor Cu and Au, and some oxidized Zn ore.5 References
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