Specimen Number4-8-051Alternate NumberSM-11CommentsLaramide (?) quartz monzonite porphyry. Surface sample, 2500 ft. above the Kalamazoo ore body. Biotite is chloritized, and epidote + calcite veining and abundant hematite (from sulfide weathering) make this a good example of propylitic alteration.In Teaching CollectionNoMineral(s)chloriteepidotefeldsparquartzRock Namequartz monzoniteDistrictSan ManuelMineSan ManuelExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypePorphyry CopperGeo-Coords[1] Reference MaterialACL-110: Mine staff San Manuel Division, 1963, Magma Copper Company San Manuel Division General Information Booklet, internal company report, 21 p.
ACL-111: Mine staff San Manuel Division, 1969, Magma Copper Company San Manuel Division General Information Booklet, internal company report, 11 p.
ACL-112: Mine staff San Manuel Division, 1970, Magma Copper Company San Manuel Division General Information Booklet, internal company report, 14 p.
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.
4-8-051: quartz monzonite - San Manuel District - San Manuel Mine. Franklin College Collections, accessed 14/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/31510