AM_Bi2Fe4O9 Formula: Bi2 Fe4 O9 Name: Bi2Fe4O9 Unit cell: 7.905 8.428 6.005 90.0 90.0 90.0 , V=400.07 Space group: PBAM (55)

Niizeki N , Wachi M , Zeitschrift fur Kristallographie , 127 (1968) p.173-187, The crystal structures of Bi2Mn4O10, Bi2Al4O9 and Bi2Fe4O9