Kogarkoite

Sulfate mineral

Kogarkoite is a sodium mineral with formula Na3(SO4)F. It has a pale blue color, a specific gravity of 3.5. The crystal is monoclinic and is a type of naturally occurring antiperovskite. Kogarkoite is named after the Russian petrologist Lia Nikolaevna Kogarko (born 1936) who discovered the mineral.

Identification

Color of mineral

Blue

Pink

Mohs scale ( mineral hardness )

3.5

Density ( specific gravity )

1.439

1.442

Luster ( interacts light )

Dull

Vitreous

Crystal ( diaphaneity )

Monoclinic