Citation: Hanic, F.; Handlovic, M.; Kapralik, I. (1980). The structure of a quaternary phase Ca20Al32-2vMgvSivO68. Acta Crystallographica, Section B, 36, pp. 2863-2869.
Formula: Al6.5 Ca5 Mg0.75 O17 Si0.75
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al32 Mg12 O68 Si8 (Al8 Mg3 O17 Si2)
Multiplicity: 1