Specimen Number4-8-044Alternate NumberSM-4CommentsPrecambrian, more of an oddity than important part of system. Occurs as narrow dikes crosscutting Oracle pluton, and are likely related to the Oracle. Predominantly quartz + K-spar, is phyllically and potassically altered, manifested as quartz-sericite veins and relict patches of K-feldspar. Quartz+chalcopyrite+pyrite veinlets and disseminated sulfides present.In Teaching CollectionNoMineral(s)chalcopyritefeldsparpyritequartzRock NamealaskiteDistrictSan 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.
4-8-044: alaskite - San Manuel District - San Manuel Mine. Franklin College Collections, accessed 13/06/2026, https://digitalcollections.franklin.uga.edu/nodes/view/31505