Arctite
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Arctite (Na 2 Ca 4 (PO 4 ) 3 F) 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. Common associates of arctite include aegirine, natisite, lomonosovite, umbite and thenardite.
Arctite (Na 2 Ca 4 (PO 4 ) 3 F) 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. Common associates of arctite include aegirine, natisite, lomonosovite, umbite and thenardite.
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