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Cottonwood Ranch Th-REE deposit, Cottonwood Ranch, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA

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‡Ref.: Adams, J.W. & M.H. Staatz (1969), Rare earths and thorium, in USGS & Arizona Bureau of Mines, and U.S. Bureau of Reclamation, Mineral and Water Resources of Arizona, Arizona Bureau of Mines Bull. 180: 245-251.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 104.

MRDS database Dep. ID file #10162334, MAS ID #0040190617.

A surface placer Th-REE occurrence located in T16S, R12E, 11 miles SW (SE ?) of the San Xavier Mission on the Cottonwood Ranch.

Mineralization is an allanite-bearing placer deposit severalm miles across.

Mineral List



1 entry listed. 1 valid mineral.

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