‡Ref.: Jones, E.L., Jr. (1916b) Gold deposits near Quartzsite, Arizona, in Contributions to economic geology, 1915, Part I: Metals and nonmetals except fuels: U.S. Geological Survey Bulletin 620: 55.
Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 136.
Adams, J.W. & M.H. Staatz (1969), Rare earths and thorium, in Mineral and water resources of Arizona, Arizona Bureau of Mines Bull. 180: 245-251.
Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 159 (Table 4).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 395.
Arizona Bureau of Mines file data.
A Au-Ag-Cu-Pb (Th, REE) mine located near Quartzsite.
Mineralization is spotty free gold and auriferous pyrite, with some copper and lead, in a lensing massive quartz vein with iron oxide in a long shear zone cutting Mesozoic quartz-epidote schist. Thorium and REE were noted in this shear zone.
Workings include numerous shafts and tunnels worked from 1860 through 1914, and intermittently through 1940. Total estimated and recorded production for the group would be some 11,000 tons of ore averaging about 0.33 oz Au/T and 0.02 oz. Ag/T.
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