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(2) Potassium-richterite. European Journal of Mineralogy, 4, pp. 425-439.
Formula: Al0.098 Ca1.042 F0.62 H1.38 K0.872 Mg4.872 Mn0.072 Na1.114 O23.38 Si7.951 Sr0.051 Ti0.006
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al26 F4 H4 Mg10 Mn10 O48 Si16 Ti10 (Al13 F2 H2 Mg5 Mn5 O24 Si8 Ti5)
Multiplicity: 1