 | | Journal (article/letter/editorial) | | andCompositional Zoning Lead Sul{osalts at Huachocolpa, Peru RICHARD W. BIRNIE AND ULRICH PETERSEN Abstract...patternsin the hydrothermalPb-Zn veins at Huachocolpa,Peru. Ratios of As/Sb basedboth on electronmicroprobeanalysesof...Geocronite coexists at Huachocolpa with two other lead sulfosalts, boulangerite (Pbs(Sb,As)4Sn) and veenite...natural phasesdescribed partment of Huancavelica in south-central Peru, below. Similarly, veenite (Pb2(As...of dufrenoysite (Jambor, country rocks of the district are made up of folded 1967a), but an isostructuralrelation |  | | Journal (issue) | | TSKnerals of i'eru ! Indian miner, Cerro de Pasco, Peru, 1869 (Simonin, 1869). J3E(mes and J3E(merals... 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection; Jeff Scovil photo................................ 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.......................... Pasto Bueno district, Pallasca province, department of Ancash R a u r a -H u |  | | Report (chapter) | | deposits are best known from Chile and southern Peru. They consist o f stratiform concentrations of disseminated...northwest it impinges on the Sonoran Basin and Range province and in the southeast, south of the Trans-Mexico...zinc and copper. According to an analysis of the district undertaken by Geyne and co-workers, 9 the volcanic...carbonatization fringing the veins. At Tayoltita, San Dimas district (Fig. 1), volcanic rocks and an intercalated conglomerate...820 g/ton Ag and 16 g/ton Au. 10 The Guanajuato district (Fig. 1) is characterized by at least 700 m of |  | | Book | | MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Administered Tribal Areas and North West Frontier Province. Ilmenite crystal clusters to 12 cm across have...of rutile (Weerth, 2004). Tonniq Valley, Skardu district, Gilgit-Baltistan [Northern Areas]. Beginning...hematite. Zagi [Zegi] Mountain, Warsak district, North West Frontier Province. Surface diggings worked by local...to 6 cm (2005: 120). Los Remedios mine, Taxco district, Taxco, Guerrero. Ilvaite occurs in the wallrock |
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