4-8-007: quartzite - Copper Mountain District - Morenci Mine

Details

Specimen Number4-8-007Alternate NumberM-7CommentsCoronado quartzite, Cambrian. Mostly non-reactive in terms of alteration, cut by veinlets of milky quartz, pyrite, minor chalcopyrite and molybdenite. Minor disseminated pyrite is stippled throughout, but alteration silicates beyond trace garnet (?) are absent. Most of the pyrite is chalcocite coated, with local brochantite staining chalcocite with suggests that this supergene enrichment blanket is being oxidized rather than enhanced.In Teaching CollectionNoMineral(s)chalcocitechalcopyritepyritequartzRock NamequartziteDistrictCopper 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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4-8-007: quartzite - Copper Mountain District - Morenci Mine

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4-8-007: quartzite - Copper Mountain District - Morenci Mine