Kazakovite

kazakovite

ussingite

nordite

vuonnemite

Images

Formula: Na₆Mn²⁺TiSi₆O₁₈
Cyclosilicate (ring silicate), zirsinalite-lovozerite subgroup, lovozerite group
Crystal System: Trigonal
Specific gravity: 2.84 to 2.90 measured, 2.97 calculated
Hardness: 4
Colour: Pale yellow
Common impurities: Al,Fe,Nb,Mg,Ca,K,P,H₂O
Environments

Plutonic igneous environments

Localities

At the Khibiny Massif, Murmansk Oblast, Russia, kazakovite is associated with villiaumite, delhayelite, lamprophyllite, lomonosovite, feldspars, nepheline and aegirine (HOM).

At the type locality, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia, kasakovite occurs disseminated in ussingite in sodalite-rich syenites in the alkalic massif. Associated minerals include nordite, belovite, vuonnemite, alkaline feldspars and ussingite (HOM, Mindat).
Kazakovite from Karnasurt Mountain - Image

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