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(12) Potassium-fluor-richterite Note: z-coordinate of O2 corrected. European Journal of Mineralogy, 4, pp. 425-439.