Citation: Mill', B.V.; Belokoneva, E.L.; Butashin, A.V. (1990). Synthesis and crystal structure of compounds A+ M5+ Ge O5 (A= Li, Na; M= Nb, Ta, Sb) and Li Ta Si O5. Kristallografiya, 35, pp. 316-323.
Formula: Ge Na Nb O5
Chemical name: Na Nb Ge O5
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ge4 Nb4 O20 (Ge Nb O5)
Multiplicity: 1
Coordination sequences: