Citation: Oberti, R.; Ungaretti, L.; Cannillo, E.; Hawthorne, F. C. (1992). The behaviour of Ti in amphiboles: I. Four- and six-coordinate Ti in richterite Sample: R(8) Potassium-fluor-richterite. European Journal of Mineralogy, 4, pp. 425-439.
Formula: Al0.062 Ca1.026 F1.444 Fe0.295 H0.556 K Mg4.656 Mn0.007 Na0.935 O22.556 Si7.58 Ti0.399
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 F4 Fe10 Mg10 Mn10 O48 Si16 Ti26 (Al8 F2 Fe5 Mg5 Mn5 O24 Si8 Ti13)
Multiplicity: 1