AM_Landauite Formula: (Na.7 K.15 Pb.15) Mn Zn2 Ti15.84 Fe2.16 O38 Name: Landauite Unit cell: 9.152 9.152 9.152 68.99 68.99 68.99 , V=644.34 Space group: R-3 (148)

Grey I E , Gatehouse B M , The Canadian Mineralogist , 16 (1978) p.63-68, The crystal structure of landauite, Na[MnZn2(Ti,Fe)6Ti12]O38