Citation: Rochere, M.; Kahn, A.; d'Yvoire, F.; Bretey, E. (1985). Crystal Structure and Cation Transport Properties of the Ortho-Diphosphates Na7 (M P2 O7)4 P O4 (M=Al,Cr,Fe). Materials Research Bulletin, 20, pp. 27-34.
Formula: Fe4 Na7 O32 P9
Chemical name: Na7 Fe4 (P2 O7)4 P O4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe8 O64 P18 (Fe4 O32 P9)
Multiplicity: 1
Coordination sequences: