 | | Journal (article/letter/editorial) | | difiraction symmetry of twins: Anais ila Acad. Brasi.leila de Ci6nci,os, 26, 111-12t. Cuurx, H. axo Ln Connu, Y...des macles i I'aide du symbolisme des groupes de couleurs de Choubnikov: Bull. Soc.Jr. Min6r. Crist.,8l...book form, Saint-Etienne. Fntnorr, G. (1926), Legons de Cristallographie-Paris, Berger-Levrault. a To readers... VOL. 44, SEPTEMBER_OCTOBER, 1959 NOTE ON "REVOREDITE" AND RELATED LEADSULFUR.ARSENIC GLASSES* Cuenr...and de las Casas (1957) have described as a new mineral, "revoredite," from Cerro de Pasco, Peru, which |  | | Journal (issue) | | TSKnerals of i'eru ! Indian miner, Cerro de Pasco, Peru, 1869 (Simonin, 1869). J3E(mes and J3E(merals...crystal group, 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection; Jeff Scovil...Avda. Rey Gustavo Adolfo 250-J Estacion Central Santiago, Chile jZonfenls * * . I n t r o d u c t i............................... History of Peru Mining in Peru The Mineral Specimen Business C o l l e c............... Quiruvilca district, Santiago de Chuco province, department of La Libertad PASTO BUENO G |  | | Journal (article/letter/editorial) | | EconomicGeology Vol. 82, 1987, pp. 1431-1452 Quiruvilca,Peru' Mineral ZoningandTiming of Wall-RockAlteration...Suite202, Lakewood,Colorado80226 Abstract Quiruvilca district Cu-Pb-Zn-Agveins have producedover 8 million...stratovolcanocomplex. The district has four broadly concentricmineralogiczones from district center to edgeswhich...andstibnite.All veins,regardlessof zonal positionin the district, share the samefour grossparageneticstages:pyrite...alterationhalosenclosingveinsincreasewith depth and toward the district center. Correlationbetweenparageneticstagesof |
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Quiruvilca Mine, Quiruvilca District, Santiago de Chuco Province, La Libertad, Peru