Chemistry:Zharchikhite
From HandWiki
| Zharchikhite | |
|---|---|
| General | |
| Category | Halide mineral |
| Formula (repeating unit) | AlF(OH)2 |
| Strunz classification | 3.AC.05 |
| Crystal system | Monoclinic, pseudo-orthorhombic |
| Identification | |
| Colour | Colorless |
| Crystal habit | Elongated prismatic cryatals, massive, drusy coatings |
| Cleavage | Perfect (010) |
| Tenacity | Very brittle |
| Mohs scale hardness | 4.5 |
| |re|er}} | Vitreous |
| Diaphaneity | Transparent |
| Specific gravity | 2.81 |
| Optical properties | Biaxial (-) |
| Refractive index | nα = 1.532 nβ = 1.552 nγ = 1.567 |
| Birefringence | δ = 0.035 |
| 2V angle | 80° (calculated) |
| References | [1][2] |
Zharchikhite is a halide mineral, a hydroxyl fluoride of aluminium; formula AlF(OH)2. It forms colourless, transparent crystals. Discovered in 1968, it is named after its original locality, the Zharchinskoya Deposit, which is in Buryatia, Russia .
References
- ↑ Mindat.org - Zharchikhite
- ↑ Handbook of Mineralogy - Zharchikhite
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W. https://www.cambridge.org/core/journals/mineralogical-magazine/article/imacnmnc-approved-mineral-symbols/62311F45ED37831D78603C6E6B25EE0A.
 |  |
