Arnett and Telegraph Canyons, Picketpost Mountain area, Superior, Superior District, Pinal Co., Arizona, USA

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A former surface perlite mine located in secs. 7, 8 & 17, T2S, R12E, about 3½ mile SW of Superior near the SW side of Picketpost Mountain, on National Forest land. NOTE: Perlite deposits in the vicinity of Picketpost Mountain may contain Apache Tears.

Mineralization is perlite hosted in Arnett Rhyolite. The perlite is light grey to milky-white. Strongly developed spheroidal perlitic structures, from a millimeter to several tens of centimeters in diameter, are successively superimposed on one another. The main mass of perlite contains several percent water.

References

Wilson, E.D. and Roseveare, G. (1945) Arizona Perlite: Arizona Bureau of Mines, University of Arizona, Circular 12 10 pp.

Peterson, D.W. (1966) The Geology of Picketpost Mountain, Northeast Pinal County, Arizona. Arizona Geological Society Digest: 8: 159-176.

USGS & Arizona Bureau of Mines & U.S. Bureau of Reclamation, Mineral and Water Resources of Arizona, Arizona Bureau of Mines Bull. 180 (USGS Bull.871), 638 pp.

Eyde, Ted, Wilkinson, P.A.K., and Weiland, E.F. (1986) Field Trip to Selected Industrial Mineral Deposits of Arizona, in Beatty, Barbara, and Wilkinson, P.A.K., editors, Frontiers in Geology and Ore Deposits of Arizona and the Southwest. Arizona Geological Society Digest vo. XVI: 312-318.

Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp.

Peirce, H. Wesley (1990), Arizona Geological Survey Industrial Minerals card file.

MRDS database Dep. ID #10060370, MRDS ID #TC10749.

Mineral List

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