Hexacelsian
| Hexacelsian | |
|---|---|
| General | |
| Category | Silicate |
| Formula (repeating unit) | BaAl2Si2O8 |
| Crystal system | Hexagonal |
| Crystal class |
Dihexagonal dipyramidal (6/mmm) H-M symbol: (6/m 2/m 2/m) |
| Space group | P63/mcm |
| Unit cell | a = 5.29, c = 15.56 [Å] (approximated) |
| Identification | |
| References | [1][2] |
Hexacelsian is a rare barium silicate mineral with the formula BaAl2Si2O8. It was discovered in the Hatrurim Basin in Israel,[1] where the Hatrurim Formation of rocks formed due to pyrometamorphism is exposed.[3]
Relation to other minerals
As suggested by its name, hexacelsian is related to celsian. This relation is polymorphous (celsian, a feldspar-group mineral, is monoclinic).[4] Beside celsian it is chemically similar to cymrite.[2]
External links
- Hexacelsian on Mindat: "Hexacelsian: Hexacelsian mineral information and data". Mindat.org. Retrieved 2016-03-12.
References
- 1 2 Galuskina, I.O., Galuskin, E.V., Prusik, K., Vapnik, Y., Dzierżanowski, P., and Murashko, M., 2015. Hexacelsian, IMA2015-045. CNMNC Newsletter No. 27, October 2015, 1224; Mineralogical Magazine 79, 1229–1236
- 1 2 "Cymrite: Cymrite mineral information and data". Mindat.org. Retrieved 2016-03-12.
- ↑ "Hatrurim (Hatrurim Basin), Negev, Israel - Mindat.org". Mindat.org. Retrieved 2016-03-12.
- ↑ "Celsian: Celsian mineral information and data". Mindat.org. Retrieved 2016-03-12.
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