luzonite

luzonite

[′lü·zə‚nīt]
(mineralogy)
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Principal copper minerals are enargite, luzonite, chalcopyrite and chalcocite, with zinc and lead in sphalerite and galena.
The principal copper ore minerals are enargite (copper-arsenic sulphide) and luzonite (copper-arsenic-antimony sulphide).
The massive sulphide mineralisation comprises the copper minerals luzonite, tennantite, bornite and minor chalcopyrite and, unusual for Chelopech, abundant visible gold.
Gebhard and Schluter (1998) determined that some unusual crystals on older specimens from Quiruvilca, previously thought to be enargite, are in fact the world's finest crystals of luzonite and famatinite.
Mankayan is a vein-type deposit containing enargite and luzonite, and in 1990 produced just over 1 Mt of ore at 1.
Copper mineralization consists of disseminated to fracture to breccia infillings of chalcocite-enargite with lesser covellite- luzonite.
In neither report, however, was the luzonite described.
La Salvadora 2 Barite, Galena, Stibnite La Salvadora 3 Apatite, cuprotungstite, scheelite, tourmaline, wolframite La Sorpresa Annabergite, gersdorffite, nickline La Union See Carmen-Aurora La Verde Columbite, topaz, green muscovite Laguna Cachi See Cachilaguna Lapiani Pyrite, siderite Laurani Enargite, (*) lammerite, lavendulan, luzonite Lequepalca Ferberite, hydrozincite, linnaeite, stibiconite, stibnite.
The title of his dissertation was "The Mineralogy, Synthesis and Genetic Significance of Luzonite, Famatinite and Some Related Minerals.
Luzonite, which differs in color from enargite, is found in the Cleopatra vein and in orebodies with a high gold content.
Aikinite Alabandite Ankerite Arsenopyrite Bournonite Djurleite Dolomite Emplectite Famatinite Greenockite Gypsum Luzonite Marcasite Matildite Native arsenic Proustite Pyrrhotite (*)Siderite Stromeyerite (*)Vivianite
The identification of luzonite/famatinite from Seravezza is based on Gandolfi camera powder X-ray diffraction patterns; no precise chemical data are available, so that attribution to either luzonite or famatinite is not possible at this time.