| maurice.strahlen.org (2003) http://maurice.strahlen.org/kola/khibiny.htm Mitchell, Roger H., Chakhmouradian, Anton R. (1998) Th-rich loparite from the Khibina alkaline complex, Kola Peninsula: isomorphism and paragenesis. Mineralogical Magazine, 62 (3) 341-353 doi:10.1180/002646198547738 |
N'orkpakhk Mt, Khibiny Massif, Murmansk Oblast, Russia