Phlogopite mine in phlogopite-diopside olivine rock.
Refs.:
- N. I. Krasnova (2001): The Kovdor phlogopite deposit, Kola Peninsula, Russia. Canadian Mineralogist, 39, 33–44.
- H.-J. Wilke, S. N. Britvin & N. Widemann (1993): Kovdor: Seltene Phosphate von der russischen Kola-Halbinsel. Lapis, 18 (10), 15–24. (in German)