Amargosa placers (Amargosa Arroyo placers; Tinaja Wash placers), Amargosa Arroyo, Continental, Tinaja Hills, Pima Co., Arizona, USA
Latitude: 31°50'30"N
Longitude: 111°7'48"W
‡Ref.: Arizona Bureau of Mines Bull. 135 (1933), Arizona Gold Placers & Placering: 64.
Wilson, E.D. (1952), Arizona gold placers and placering (Fifth edition revised): Arizona Bureau of Mines Bull. 160: 80-81.
Johnson, M.G. (1972), Placer gold deposits of Arizona, USGS Bull. 1355, 103p.: 39.
MRDS database Dep. ID file #10108972, MRDS ID #M000311.
A former small surface Au placer deposit area located in certain portions of secs. 20, 21, 28 & 29, T.18S., R.12E., in the upper course of the Amargosa Arroyo, 6 miles West of Continental, and 6 miles SW of Twin Buttes.
Mineralization is a placer gold deposit in fine-grained gravels in an arroyo. The placer gold is associated with abundant magnetitic sand. Assay (1952) yielded 80 cents Au/ton, 0.8 oz Ag/ton, 0.5 % Pb, 0.5 % Zn.
Production unknown.
Mineral List
2 entries listed. 2 valid minerals.
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