Citation: Gualtieri, A.; Artioli, G.; Passaglia, E.; Bigi, S.; Viani, A.; Hanson, J. C. (1998). Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite Sample from Tunguska. American Mineralogist, 83, pp. 590-606.
Formula: Al4.254 Ca1.8 H49.746 K0.85 O51.36 Si13.746
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al36 O72 Si36 (Al O2 Si)
Multiplicity: 1