Citation: Rozhdestvenskaya, I. V.; Nikishova, L. V.; Lazebnik, K. A. (1996). The crystal structure of frankamenite. Mineralogical Magazine, 60, pp. 897-905.
Formula: Ca4.86 F2 H4 K2.87 Na3.14 O32.78 Si12
List type: noninterleaving
List: 1D
Basis: (0;0;1)
Dimensionality: 1
Formula: O30 Si12 (O5 Si2)
Multiplicity: 1