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

References

  1. 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
  2. 1 2 "Cymrite: Cymrite mineral information and data". Mindat.org. Retrieved 2016-03-12.
  3. "Hatrurim (Hatrurim Basin), Negev, Israel - Mindat.org". Mindat.org. Retrieved 2016-03-12.
  4. "Celsian: Celsian mineral information and data". Mindat.org. Retrieved 2016-03-12.


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