AM_Bi2Al4O9
Formula: Bi2 Al4 O9
Name: Bi2Al4O9
Unit cell: 7.712 8.112 5.708 90.0 90.0 90.0 , V=357.09
Space group: PBAM (55)

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