Citation: Oberti, R.; Smith, D. C.; Rossi, G.; Caucia, F. (1991). The crystal-chemistry of high-aluminium titanites Sample: TK22. European Journal of Mineralogy, 3, pp. 777-792.
Formula: Al0.349 Ca0.986 Fe0.023 O5 Si Ti0.605
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al4 Fe4 O20 Si4 Ti4 (Al Fe O5 Si Ti)
Multiplicity: 1