4-8-024: diabase - Mineral Creek District - Ray Mine

Details

Specimen Number4-8-024Alternate NumberR-4CommentsDiabase, biotized and oxidized. Stockwork fracturing of diabase followed by quartz + biotite + minor feldspar alteration. Minor offsets of quartz-filled veinlets show that structural adjustments were common during hypogene phase. This alteration phase characterized by chalcopyrite:pyrite ratios of 1:1, with accessory anhydrite and calcite. Late-stage oxidation resulted in production of chrysocolla and destruction of primary sulfides. Typical silicate ore.In Teaching CollectionNoMineral(s)chrysocollaplagioclasepyroxeneRock NamediabaseDistrictMineral CreekMineRayExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypePorphyry CopperGeo-Coords^[1]Reference MaterialACL-115: Hoelscher, S.A., 1977, Structural Geology of the Ray mine, Recent Developments, AZ Conference AIME, Mining Geology Division Meeting, Ray Mine, AZ, April 16, 1977, 18 p.

ACL-116: Cornwall, H.R., and Banks, N.G., 1977, Igneous Rocks and Copper Mineralization in the Ray Porphyry Copper District, Arizona, U.S.G.S. Open-file report 77-255, 1977, 10 p.

ACL-117: Gambell, N.A., 1977, Geology and Mineralization of the Ray Silicate Orebody, AZ Conference AIME, Mining Geology Division Meeting, Ray Mine, AZ, April 16, 1977, 15 p.

ACL-118: Gambell, N.A., 1977, A Review of the Ray Orebody, AZ Conference AIME, Mining Geology Division Meeting, Ray Mine, AZ, April 16, 1977, 19 p.

ACL-121: Gambell, N.A., 1976, Geology and Mineralization of the Ray silicate orebody, in Jenney, J.P., and Hauck, H.R., eds., AZ Geol. Soc. Digest Volume XI, Proceedings of the Porphyry Copper Symposium, Tucson, AZ, March 18-20, p. 35.

ACL-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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4-8-024: diabase - Mineral Creek District - Ray Mine

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4-8-024: diabase - Mineral Creek District - Ray Mine