Mine Descriptions

American Mine


American image not found

American image not found

American image not found

American image not found

Alternate Names

None

Company

Marcia Bros., Giacoma5.

Mining District and Mines

Harshaw District

Arizona Geological Survey Mining data

Location

23S 18E5

31.45431, -110.723457

Mineral Products

Ag, Pb, Zn, Cu-, Au-.5

Geology

Lensing 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 Production

Tunnel, 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

  1. Mineral Appraisal of Coronado National Forest, Part 12, Santa Rita Mountains Unit, MLA11-94 (1994). SR 591-609
    http://repository.azgs.az.gov/sites/default/files/dlio/files/nid1813/usbm_mla_011-94.pdf
  2. Mining in the Santa Rita and Patagonia Mountains of Arizona, F. C. Schrader, U.S. Department of Interior, 1915. Republished 2014 by Kerby Jackson.
  3. Mike Bertram,
  4. USGS Mineral Resources Data System - using WGS84 (https://mrdata.usgs.gov/mrds/map-commodity.html#home)
  5. Index of Mining Properties in Santa Cruz County by Stanton B. Keith, bulletin 1991, Arizona Geological Survey, 1975
  6. WesternMiningHistory.com
  7. https://www.mindat.org/loc-62982.html