AM_Eitelite
Formula: Na2 Mg C2 O6
Name: Eitelite
Unit cell: 4.942 4.942 16.406 90.0 90.0 120.0 , V=347.01
Space group: R11-3 (1)

Pabst A , American Mineralogist , 58 (1973) p.211-217, The crystallography and structure of eitelite, Na2Mg(CO3)2