Article · Wikipedia archive · Last revised Jun 11, 2026

Arctite

Arctite (Na2Ca4(PO4)3F) is a colourless mineral found in the Kola Peninsula northern Russia. Its IMA symbol is Arc. It has a Mohs hardness of 5 and has a specific gravity of 3.13. Arctite is transparent with a vitreous lustre. Arctite has a perfect cleavage and a trigonal crystal system. It is also a naturally occurring antiperovskite.

Last revised
Jun 11, 2026
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Arctite
Arctite crystals
General
CategoryMinerals
Formula(Na2Ca4(PO4)3F)
IMA symbolArc
Identification
ColorColorless
Mohs scale hardness5
LusterVitreous, Sub-Vitreous, Pearly
Specific gravity3.13

Arctite (Na2Ca4(PO4)3F) is a colourless mineral found in the Kola Peninsula northern Russia.1 Its IMA symbol is Arc.2 It has a Mohs hardness of 5 and has a specific gravity of 3.13. Arctite is transparent with a vitreous lustre. Arctite has a perfect cleavage and a trigonal crystal system.3 It is also a naturally occurring antiperovskite.4

Common associates of arctite include aegirine, natisite, lomonosovite, umbite and thenardite.1

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