Specimen Number11-3-020Alternate Number80-206Commentsfew quartz phenocrystsIn Teaching CollectionNoMineral(s)chloritepyritequartzRock Namequartz porphyryDistrictRio TintoMineAznalcollarExternal LinkMindatGeo-LocationundefinedSub-LocationundefinedDeposit TypeVMSGeo-Coords[1] Reference MaterialACL-62: Barriga, F.J.A.S., and Carvalho, D., 1983, Carboniferous Volcanogenic Sulphide Mineralizations in South Portugal (Iberian Pyrite Belt), in Lemos de Sousa, M.J. and Oliveira, J.T., eds., The Carboniferous of Portugal, Memorias dos Servicos Geologicos de Portugal, no. 29, Lisbon, Portugal, p. 99-116.
ACL-62: Munha, J., 1983, Hercynian Magmatism in the Iberian Pyrite Belt, in Lemos de Sousa, M.J. and Oliveira, J.T., eds., The Carboniferous of Portugal, Memorias dos Servicos Geologicos de Portugal, no. 29, Lisbon, Portugal, p. 39-82.
11-3-020: quartz porphyry - Rio Tinto District - Aznalcollar Mine. Franklin College Collections, accessed 04/09/2026, https://digitalcollections.franklin.uga.edu/nodes/view/30774