Citation: Ercit, T. S.; Hawthorne, F. C.; Cerny, P. (1985). The crystal structure of synthetic natrotantite. Bulletin de Mineralogie, 108, pp. 541-549.
Formula: Na2 O11 Ta4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: O66 Ta24 (O11 Ta4)
Multiplicity: 1
Coordination sequences: