The Arizona Copper Industry in Arizona in 1992., Special Report 20, by Nyal Niemuth, available from the Arizona Department of Mines & Mineral Resources, 1502 W. Washington, Phoenix, Ariz. 85007. US$8 (ordered, US$10).
The report details concentrate and leach production, byproducts, stripping ratios, ore grades, mill recoveries, reserves, employment and wages, and other statistics pertaining to Arizona’s copper industry. National and world statistics are included, as are brief reviews of producers’ facilities and activities, including acquisitions and expansion.
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