4-8-003: granite - Copper Mountain District - Morenci Mine

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Specimen Number4-8-003Alternate NumberM-3CommentsOxidized and sericitized granite porphyry. Northern most of this suite of samples, this is another near surface sample showing oxidation of sulfides without significant leaching. Chrysocolla, malachite, brochantite, and cuprite are present. Original sulfides nearly gone. Quartz eyes evident, and the groundmass has been sericitized, argillized, and silicified. Grade to 0.8% Cu, with trace Mo. Turquoise sometimes found in this unit.In Teaching CollectionNoMineral(s)chrysocollafeldsparquartzsericiteRock NamegraniteDistrictCopper MountainMineMorenciExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypePorphyry CopperGeo-Coords^[1]Reference MaterialACL-173: Anzalone, S.A., Beane, R.E., Davis, S.R., Graybeal, F.T., Guilbert, J.M., Oakley, C.A., Titley, S.R., and West, R.M., org., 1979, Society of Economic Geology Field Conference on Tucson-Area Porphyry Copper Deposits, Tucson, AZ, May 3-6, 1979, 205 p.

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4-8-003: granite - Copper Mountain District - Morenci Mine

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4-8-003: granite - Copper Mountain District - Morenci Mine