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DeutschArctite
| Arctite | |
|---|---|
 Arctite crystals | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | (Na2Ca4(PO4)3F) |
| IMA symbol | Arc |
| Identification | |
| Color | Colorless |
| Mohs scale hardness | 5 |
| Luster | Vitreous, Sub-Vitreous, Pearly |
| Specific gravity | 3.13 |
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]
References
[edit]- ^ a b Mineral Handbook
- ^ 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.
- ^ Mindat.org
- ^ Arctite Supergroup on Mindat
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