AM_Rb274(NH4)226Fe3O(SO4)67H2O Formula: (Rb2.74 N2.26) Fe3 S6 O32 H14 Name: Rb2.74(NH4)2.26Fe3O(SO4)6.7H2O Unit cell: 9.783 9.586 18.389 95.3 93.19 118.12 , V=1504.77 Space group: P-1 (2)

Mereiter K , Acta Crystallographica, Section C , 46 (1990) p.972-976, Structure of a triclinic rubidium ammonium, triaqua-u3-oxo-hexa-u-sulfato-triferrate(III), tetrahydrate, Rb2.74(NH4)2.26Fe3O(SO4)6.7H2O