FornaciteCopper Point Mine, Hilton Mines, Copper Camp, Hilton, Empire District, Empire Mts, Pima Co., Arizona, USA
Photo: Alan Goldstein Latitude: 31°53'38"N
Longitude: 110°36'56"W
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 141, 150.
Finnell, T.L. (1971), Preliminary Geologic Map of the Empire Mts quadrangle, Pima County, Arizona, USGS Open-file Report.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 225.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039597, MRDS ID #M050395; and, Dep. ID #10235003, MAS ID #0040190477.
A former small Cu-Ag-Au mine located in sec. 4, T18S, R17E, about 1 mile NE of the Hilton Ranch.
Mineralization is a vein deposit with a tabular ore body involving a contact between intrusive granite and limestone. The vein is 8 inches (20 cm) wide with garnetiferous, epidotized, ferruginous gangue containing chiefly sulfides, some copper carbonates and specularite.
The ore is reported to average 20% Cu, 20 oz. Ag/T and $3 of Au/T (period values). No production record.
Mineral List
8 entries listed. 6 valid minerals.
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