Zircón hafnífero de la pegmatita La Elvirita, Nevados de Palermo, Salta

GALLISKI M. A. CERNÝ P.

Mineralogía y Metalogenia 2002

Universidad de Buenos Aires

Lugar: Buenos Aires; Año: 2002; p. 151 - 155

Hafinan zircon from a rare-element, montebrasite-bismuthinite-microlite bearing pegmatite is studied. The mineral occur as paralell aggregates of simple {101}} bypiramidal crystals with curved faces (EV2), that include platy albite and manganocolumbite, or with the same crystal forms (EV8) associated with uranmicrolite in the core of an cm-sized bismuthinite crystal. The zircon crystals are unzoned and crystalline; its chemical composition show values close to 20 and 15 of HfO2 wt% respectively corresponding to low temperature magmatic hafnian zircon.Keywords: Hafnian zircon, rare-element pegmatite, El Quemado pegmatitic field.