Citation: Kashaev, A. A.; Sapozhnikov, A. N. (1978). Crystal structure of armstrongite. Kristallografiya, 23, pp. 956-961.
Formula: Ca H4 O17 Si6 Zr
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: O60 Si24 Zr4 (O15 Si6 Zr)
Multiplicity: 1
Coordination sequences: