Fedorite

Fedorite is a rare and complex silicate, first discovered in fenitized rocks of the Turiy alkaline complex of the Kola Peninsula, Russia. In 1968, the mineral approved by IMA and named after the Russian mathematician, crystallographer and mineralogist Evgraf Stepanovich Fedorov. Mineralogical description and chemical analysis published in 1979.

Subsequently, a second occurrence of the mineral reported from charoite rocks of the Murun complex. Geologically, Murun syenite massif, formed at about 137–128 Ma, is located in the NW Aldan Shield, Siberia, Russia.