AM_Loweite
Formula: Na12 Mg7 S13 O67 H36
Name: Loweite
Unit cell: 11.769 11.769 11.769 106.5 106.5 106.5 , V=1375.67
Space group: R-3 (148)

Fang J H , Robinson P D , American Mineralogist , 55 (1970) p.378-386, Crystal structures and mineral chemistry of double-salt hydrates: II. The, crystal structure of loeweite