Citation: Sundberg, M. R.; Lehtinen, M.; Kivekas, R. (1987). Refinement of the crystal structure of ramsayite (lorenzenite). American Mineralogist, 72, pp. 173-177.
Formula: Na2 O9 Si2 Ti2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: O36 Si8 Ti8 (O9 Si2 Ti2)
Multiplicity: 1
Coordination sequences: