BOOKS IN BRIEF — Arizona’s mineral production

Directory of Active Mines in Arizona, 1993, US$4 (US$5.50 if mailed) and The Primary Copper Industry of Arizona in 1991, US$8 (US$10 if mailed), both available from the Arizona Department of Mines and Mineral Resources, 1502 West Washington, Phoenix, Ariz. 85007.

The directory reports on 56 companies operating 104 mines, as well as 75 sand and gravel operators. The copper report covers production, stripping ratios, ore grade, mill recoveries, reserves, employment and wages, and other statistics. Arizona’s mines accounted for 63% of the total U.S. copper production that year; copper is produced in the state by six companies from 18 properties.