Citation: Yamane, Hisanori; Nagasawa, Toru; Shimada, Masahiko; Endo, Tadashi (1997). Ca~3~Y~2~(Si~3~O~9~)~2~. Acta Crystallographica Section C, 53, pp. 1533-1536.
Formula: Ca3 O18 Si6 Y2
Chemical name: ?
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca20 O72 Si24 Y20 (Ca5 O18 Si6 Y5)
Multiplicity: 1
Coordination sequences: