| | Report (issue) | oriented patches to 80 μm, sometimes replacing enargite. Physical Properties: Cleavage: Indistinct. Tenacity:...26 28.18 100.00 (1) Layo deposit, Castilla Province, Arequipa Department, Peru; average electron microprobe...hydrothermal vein deposit by replacement of enargite under decreasing fS2. Association: Enargite, chalcopyrite...Distribution: From the Layo deposit, Castilla Province, Arequipa Department, Peru. Name: Honors the English...Tennantite-(Cu), Cu12As4S13, from Layo, Arequipa Department, Peru: a new addition to the tetrahedrite-group | | | Journal (article/letter/editorial) | Cu-excess Tennantite from the Layo (Cu, Sn, As, Au) epithermal deposit (Southern Peru) E. M a r c o u x 1, Y...accepted October 29, 1993 Summary The Layo epithermal deposit, cutting Miocene-Pliocene calc-alkaline...mineralogy of the "acid-sulfate" type (pyrite, enargite, Cu-excess tennantite, chalcopyrite, covellite)...epithermal mineralization of the eastern vetas of Layo appears to have preceded an "adularia-sericite"...mineralization expressed in the western vetas of Layo and also in the nearby large epithermal veins at | | | Book (edition) | SphaJerite. xx 12 mm, Morococha, Peru, H Gypsum, xx 40 mm, Las Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga...Katanga administrative region again. The former Kivu province is now divided to three regions: INTRODUCTION |
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