Citation: Kawamura, K.; Iiyama, J. T. (1981). Crystallochemistry and thermochemistry of sodipotassic copper silicate Na2-2xK2xCuSi4O10. Bulletin de Mineralogie, 104, pp. 387-395.
Formula: Cu K2 O10 Si4
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Cu4 O40 Si16 (Cu O10 Si4)
Multiplicity: 1
Coordination sequences: