Citation: Smolin, Y. I.; Shepelev, Y. F. (1970). The crystal structures of the rare earth pyrosilicates. Acta Crystallographica, Section B, 26, pp. 484-492.
Formula: Gd2 O7 Si2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Gd8 O28 Si8 (Gd2 O7 Si2)
Multiplicity: 1
Coordination sequences: