Citation: Fischer, K. F. (1963). The crystal structure determination of the zeolite gismondite. CaAl2Si2O8.4H2O. American Mineralogist, 48, pp. 664-672.
Formula: Al2 Ca H8 O12 Si2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al8 O32 Si8 (Al O4 Si)
Multiplicity: 1
Coordination sequences: