Citation: Gasperin, M. (1977). Un niobate de thallium de type 'bronze hexagonal' excedentaire en cations. Acta Crystallographica, Section B, 33, pp. 2306-2308.
Formula: Nb3.09 O8.222 Tl
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Nb16 O36 (Nb4 O9)
Multiplicity: 1
Coordination sequences: