ObsidianSuperior Obsidian locality, Superior, Pioneer District, Pinal Mts, Pinal Co., Arizona, USA
Latitude: 33°16'14"N
Longitude: 111°7'19"W
Ref.: Wilson, E.D. and Roseveare, G. (1945) Arizona Perlite: Arizona Bureau of Mines, University of Arizona, Circular 12 10 pp.
Arizona Department of Transportation Hiway Map - Pinal County (1949): 1.
Peirce, H.W. (1969) 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.: 359.
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.
Arizona Department of Mineral Resources Boyer claims file.
Arizona Department of Mineral Resources Superior Obsidian group file.
MRDS database Dep. ID #10064155, MRDS ID #TC38415.
A perlite and obsidian occurrrence. NOTE: Perlite deposits in the vicinity of Picketpost Mountain may contain Apache Tears.
Mineralization is perlite hosted in Arnett Rhyolite.
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