Citation: Gasperin, M (1967). Structure cristalline du bronze de tungstene: Ba O (Ta~2~ O~5~)~2~. Bulletin de la Societe Francaise de Mineralogie et de Cristallographie(72,1949-100,1977), 90, pp. 172-175.
Formula: Ba5.5 O60 Ta21.8
Chemical name: Barium tantalum oxide (5.5/21.8/60)
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ba8 O60 Ta28 (Ba2 O15 Ta7)
Multiplicity: 1
Coordination sequences: