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Mine Descriptions

American Boy Mine group

Wrightson Mining district

Company

Clark, Peterson, & David, Gross Mg. & Investment Co..

Location

?

Mineral Products

Pb, Ag, Cu, Zn, Au (Ba)

Type of Operations

Tunnel and shaft operations. Worked from about 1906 through 1918, and sporadically through 1951, producting some 200 tons of ore averaging about 4.5% Pb, 8 oz. Ag/T, 4% Cu and 0.1 oz. Au/T.5

Geology

Series of irregular quartz and breccia veins containing seams, shoots, and stringers of spotty argentiferous galena, massive pyrite, chalcopyrite, tetrahedite, bornite, and sphalerite in quartz, calcite, and some bladed barite gangue, Oxidized near the surface with enrichment in argentiferous cerussite. Wall rock is Triassic quartz monzonite intruded by Jurassic quartz monzonite and splitic bodies.5

  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, 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 Staton B. Keith, bulletin 1991, Arizona Geological Survey, 1975