Citation: Ghose, S.; Wan, C.; Chao, G. Y. (1980). Petarasite, Na5Zr2Si6O18(Cl,OH).2H2O, a zeolite-type zirconosilicate. The Canadian Mineralogist, 18, pp. 503-509.
Formula: Ca0.2 Cl0.75 H4.37 Na4.8 O20.37 Si6 Zr2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: O36 Si12 Zr4 (O9 Si3 Zr)
Multiplicity: 1
Coordination sequences: