Citation: Dago, A.M.; Pushcharovskii, D.Yu.; Pobedimskaya, E.A.; Strelkova, E.E.; Belov, N.V. (1980). Tr4 Ge3 O9 (O H, F)6, a new structural type in the series of rare-earth germanates. Doklady Akademii Nauk SSSR, 250, pp. 857-861.
Formula: F6 Ge3 O9 Yb4
Chemical name: Yb4 Ge3 O9 F6
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: F24 Ge12 O36 Yb16 (F6 Ge3 O9 Yb4)
Multiplicity: 1
Coordination sequences: