Eitelite
Pabst A
American Mineralogist 58 (1973) 211-217
The crystallography and structure of eitelite, Na2Mg(CO3)2
_database_code_amcsd 0000307
4.942 4.942 16.406 90 90 120 R-3
atom    x    y    z Biso
Na      0    0 .196   .4
Mg      0    0    0   .4
C       0    0 .410   .4
O    .293 .092 .410   .4