Unnamed Cu-Fe prospect 118-24, Amole District, Tucson Mts, Pima Co., Arizona, USA
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MRDS database Dep. ID file #10039824, MRDS ID #M050904.
A Cu-Fe occurrence/prospect with surface and underground workings located in sec. 30, T13S, R12E.
Mineralization is a tabular 1 meter wide ore body hosted in arkose, and striking N78E, dipping 67S. Ore control was the hanging wall of the shear zone. Heavy limonite occurs in a 50 cm wide zone on the hanging wall side of the shear zone. Immediately to the NE, about 7 meters upslope, is a massive magnetite-hematite pod. Minor Cu silicates occur on fractures. About 2 meters in the hanging wall of the shear zone are apophysics into hornfels, which look like K feldspar with about 20% actinolite, and include a 60 X 15 cm pod of massive actinolite. Alteration is pyrite gossan. An associated rock unit is quartz monzonite.
A local structure is a shear zone.
Workings include an adit and 2 pits. Prospected by the 2 pits, 10-15 meters long. Workings are 13.72 meters long overall.
6 entries listed. 3 valid minerals.
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