Arctite

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Arctite
Arctite.jpg
Arctite crystals
General
Category Minerals
Formula (Na 2 Ca 4(P O 4)3 F)
IMA symbol Arc
Identification
ColorColorless
Mohs scale hardness5
Luster Vitreous, Sub-Vitreous, Pearly
Specific gravity 3.13

Arctite (Na 2 Ca 4(P O 4)3 F) 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]

References

  1. 1 2 Mineral Handbook
  2. Warr, L.N. (2021). "IMA-CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi: 10.1180/mgm.2021.43 . S2CID   235729616.
  3. Mindat.org
  4. Arctite Supergroup on Mindat