How do I identify Kogarkoite?

Kogarkoite can be identified by its hardness of 3.5 on the Mohs scale. Look for these key characteristics when examining specimens.

How hard is Kogarkoite?

Kogarkoite has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.

Kogarkoite

A variety of Minerals

What is Kogarkoite?

Kogarkoite is a sodium sulfate fluoride mineral with formula Na3(SO4)F. It has a pale blue color, a specific gravity of about 2.67 and a hardness 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.

Kogarkoite Market Value Calculator

Estimate the market value of Kogarkoite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Kogarkoite Localities Map

See where Kogarkoite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview

North ZoneCentral RidgeSouth Basin

Key Characteristics

Formation of Kogarkoite

Kogarkoite was first described in 1973 for an occurrence on Alluaiv Mountain, Lovozero Massif, Kola Peninsula, Russia. On Alluaiv it occurs in pegmatitic veins in nepheline syenite. It occurs with sodalite in syenite xenoliths in an alkali intrusive complex at Mont Saint-Hilaire, Canada. In Hortense Hot Spring, Chaffee County, Colorado, it occurs as a sublimate. It occurs at Lake Natron near Ol Doinyo Lengai, Tanzania and Suswa Volcano, Lake Magadi, Kenya.