Principal copper minerals are enargite, luzonite
, chalcopyrite and chalcocite, with zinc and lead in sphalerite and galena.
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
Mankayan is a vein-type deposit containing enargite and luzonite
, and in 1990 produced just over 1 Mt of ore at 1.4% copper, 2.37 g/t gold and 11.3 g/t silver.
Gaines (1957) first reported the sparse occurrence at Butte of the rare mineral luzonite. It was also determined in the exhaustive studies of Guilbert and Zeihen (1964), in trace amounts only in the ores of the Central Zone.
Luzonite from Butte is a copper red color, grading toward grayish pink with a metallic luster.
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." After he completed his graduate work at Harvard, he obtained an enviable job as a professional mineralogist at the renowned lead-zinc mines at Joplin, Missouri, and subsequently worked in uranium exploration while living in Grand Junction, Colorado.
Luzonite, which differs in color from enargite, is found in the Cleopatra vein and in orebodies with a high gold content.
Aramayoite Arsenopyrite Baumhauerite Bismuthinite Bornite Calcite Chalcocite Chalcopyrite Covellite Freibergite (*)Gratonite Hematite Jamesonite Luzonite Magnetite Malachite Marcasite Native Copper Realgar Siderite Stannite Vivianite Wolframite
Aikinite Alabandite Ankerite Arsenopyrite Bournonite Djurleite Dolomite Emplectite Famatinite Greenockite Gypsum Luzonite
Marcasite Matildite Native arsenic Proustite Pyrrhotite (*)Siderite Stromeyerite (*)Vivianite
[Cu.sub.3]As[S.sub.4] / Famatinite [Cu.sub.3]Sb[S.sub.4]