Hexacelsian
Kremenovic A, Colomban P, Piriou B, Massiot D, Florian P
Journal of Physics and Chemistry of Solids 64 (2003) 2253-2268
Structural and spectroscopic characterization of the quenched hexacelsian
_database_code_amcsd 0013253
5.2920 5.2920 15.557 90 90 120 P6_3/mcm
atom    x   y    z occ Biso
Ba      0   0    0 .99  1.6
Eu      0   0    0 .01  1.6
Si    1/3 2/3 .145  .5   .9
Al    1/3 2/3 .145  .5   .9
O1    1/3 2/3  .25      1.0
O2   .489   0 .104      3.6