AM_Hexacelsian Formula: (Ba.99 Eu.01) (Si2 Al2) O8 Name: Hexacelsian Unit cell: 5.292 5.292 15.557 90.0 90.0 120.0 , V=377.31 Space group: P63/MCM (193)

Kremenovic A , Colomban P , Piriou B , Massiot D , Florian P , Journal of Physics and Chemistry of Solids , 64 (2003) p.2253-2268, Structural and spectroscopic characterization of the quenched hexacelsian