Citation: Arakcheeva, A.V.; Chapuis, G.; Grinevich, V.V.; Shamrai, V.F. (2004). Structure type of hexagonal tantalum bronzes with variable composition K6 Ta6+z O15 F6 (F,O)y: Ta-bronzes and Ta-compounds. Kristallografiya, 49, pp. 75-91.
Formula: F7.1 K6 O15 Ta7.05
Chemical name: K6 Ta7.05 O15 F7.1
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F18 K6 O15 Ta21 (F6 K2 O5 Ta7)
Multiplicity: 1
Coordination sequences: