AM_Tschermigite_1 Formula: N H28 Al S2 O20 Name: Tschermigite Unit cell: 12.248 12.248 12.248 90.0 90.0 90.0 , V=1837.37 Space group: PA3 (205)

Abdeen A M , Will G , Schafer W , Kirfel A , Bargouth M O , Recker K , Weiss A , Zeitschrift fur Kristallographie , 157 (1981) p.147-166, X-ray and neutron diffraction study of alums:, II. The crystal structure of methylammonium aluminium alum, III. The crystal structure of ammonium aluminium alum, Note: Neutron data