Global InformationBaratovite information
| Baratovite | |
|---|---|
 | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | KCa7(Ti,Zr)2Li3Si12O36F2 |
| IMA symbol | Btv[1] |
| Strunz classification | 9.CJ.25 |
| Dana classification | 61.1.4.2 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic H-M symbol: 2/m |
| Space group | C2/c |
| Unit cell | 3,185.91 |
| Identification | |
| Color | White, colorless, pink |
| Twinning | Common on {001} |
| Cleavage | Perfect on {001} |
| Fracture | Conchoidal |
| Tenacity | Brittle |
| Mohs scale hardness | 5 - 6 |
| Luster | Vitreous, pearly |
| Streak | White |
| Specific gravity | 2.92 |
| Density | 2.92 |
| Optical properties | Biaxial (+) |
| Refractive index | nα = 1.674 nβ = 1.671 nγ = 1.666 |
| Birefringence | 0.008 |
| 2V angle | 60° |
| Dispersion | Strong r > v |
| Common impurities | Fe, Nb, Mn, Na |
| Other characteristics |  Radioactive |
Baratovite is a very rare cyclosilicate mineral named after Rauf Baratovich Baratov from Tajikistan. It was discovered in 1974 at Dara-Pioz glacier, Tajikistan,[2] and was approved by the International Mineralogical Association only a year later in 1975.[3] The glacier gives home to 133 valid species, and is the type locality of 33 minerals, one of which is baratovite.[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.
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