AM_Brackebuschite_1 Formula: Pb2 Mn V2 O9 H Name: Brackebuschite Unit cell: 7.65 6.135 8.863 90.0 111.76 90.0 , V=386.33 Space group: P121/M1 (11)

Foley J A , Hughes J M , Lange D , The Canadian Mineralogist , 35 (1997) p.1027-1033, The atomic arrangement of brackebuschite, redefined as Pb2(Mn,Fe)(VO4)2(OH),, and comments on Mn octahedra