AM_Glauberite
Formula: Ca Na2 S2 O8
Name: Glauberite
Unit cell: 10.129 8.306 8.533 90.0 112.19 90.0 , V=664.72
Space group: C12/C1 (15)

Araki T , Zoltai T , American Mineralogist , 52 (1967) p.1272-1277, Refinement of the crystal structure of a glauberite