AM_Nikischerite Formula: Fe6 Al3 Na S2 O38 H42 Name: Nikischerite Unit cell: 9.347 9.347 33.0 90.0 90.0 120.0 , V=2496.83 Space group: R11-3 (1)

Huminicki D M C , Hawthorne F C , The Canadian Mineralogist , 41 (2003) p.79-82, The crystal structure of nikischerite, NaFeAl3(SO4)2(OH)18(H2O)12,, a mineral of the shigaite group