Cerny, Petr Exsolution and breakdown of scandian and tungstenian Nb-Ta-Ti-Fe-Mn phases in niobian rutile - Toronto, ON Mineralogical Association of Canada February 2001 - pp. 93-101 ilus. ISSN: 0008-4476 Subjects--Topical Terms: ALTERACIONESCANDIOEXSOLUCIONPEGMATITA GRANITICARUTILO NIOBIFEROTUNGSTENO Subjects--Geographic Terms: RUSIA