baotite in carbonatites and fenites at Haast River, New Zealand ALAN F. COOPER Geology Department, University...University of Otago, P.O. Box 56, Dunedin, New Zealand Abstract Baotite occurs as an accessory mineral in...lamprophyre dyke swarm in the Haast River area of south Westland, New Zealand. Carbonatites are petrogenetically...involvement of halogens in carbonatite magmas. In the New Zealand occurrences it is suggested that the chlorine...KEYWORDS:baotite, carbonatite, fenite, niobium, New Zealand. Introduction BAOTITE is a rare, Ba-Nb-Ti chlorosilicate |