Hexacelsian
| Hexacelsian | |
|---|---|
| General | |
| Category | Silicate |
| Formula (repeating unit) | BaAl2Si2O8 |
| Crystal system | Hexagonal - Dihexagonal dipyramidal (point group 6/mmm) |
| Unit cell | a=5.29, c=15.56 [Å] (approximated) |
| Identification | |
| Crystal symmetry | space group P63/mcm |
| 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.
This article is issued from Wikipedia - version of the Saturday, April 23, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.