AM_Vanthoffite
Formula: Na6 Mg S4 O16
Name: Vanthoffite
Unit cell: 9.797 9.217 8.199 90.0 113.5 90.0 , V=678.96
Space group: P121/C1 (14)

Fischer W , Hellner E , Acta Crystallographica , 17 (1964) p.1613-1613, Ueber die struktur des vanthoffits, Locality: synthetic