Hexacelsian is a rare barium silicate mineral with the formula BaAl2Si2O8. It was discovered in the Hatrurim Basin in Israel,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 where the Hatrurim Formation of rocks formed due to exposed pyrometamorphism.
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). Beside celsian, it is chemically similar to cymrite.
References
External links Hexacelsian on Mindat: