AM_Pb4O(VO4)2 Formula: Pb4 V2 O9 Name: Pb4O(VO4)2 Unit cell: 22.7276 11.5346 7.4349 90.0 90.0 90.0 , V=1949.09 Space group: PNMA (62)

Krivovichev S V , Burns P C , The Canadian Mineralogist , 41 (2003) p.951-958, Chains of edge-sharing OPb4 tetrahedra in the structure of Pb4O(VO4)2 and in, related minerals and inorganic compounds