Unnamed Fe-Cu prospect 118-18, Amole District, Tucson Mts, Pima Co., Arizona, USA
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MRDS database Dep. ID file #10039830, MRDS ID #M050910.
A Fe-Cu occurrence/prospect with surface workings located in sec. 30, T13S, R12E, on National Park property.
Mineralization is a tabular, massive magnetite body 60 meters long and 2 meters wide, hosted in arkose. The magnetite gives way to a small amount of epidote-calcite skarn with minor Cu silicate on fractures. Some gossan occurs with the magnetite - former from associated massive pyrite? Alteration includes pyrite-gossan; skarn; and magnetite. An associated rock unit is quartz monzonite.
Workings include a cut. The cut is at the lower (S) end of the magnetite body.
4 entries listed. 3 valid minerals.
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