Publication
INVESTIGATION OF CASSITERITES AND THEIR COLUMBITE-TANTALITE INCLUSIONS IN RARE METAL PEGMATITES OF THE EAST SAYAN BELT BY X-RAY ELECTRON PROBE MICROANALYSIS
(SGEM Scientific GeoConference, 2010, O. Belozerova, VL. Makagon)
Show more
The X-ray electron probe microanalysis (EPMA) technique is developed for cassiterites and minerals of Ta and Nb. The phase and chemical composition of rare metal pegmatite cassiterites of the East Sayan Belt and their inclusions of Ta and Nb minerals were studied using the EPMA technique. The results of cassiterite investigations showed, that niobium and tantalum are contained both in isomorphous form, substituting the tin in the matrix of mineral and as mineral inclusions of columbitetantalites. The distribution ...
Mineral Processing2010