AM_Richterite_60 Formula: O22.532 F1.466 K.996 Ti.419 Fe.3 Mg4.65 Mn.005 Ca1.02 Na.934 Si7.536 Al.064 H.532 Name: Richterite Unit cell: 10.025 18.034 5.286 90.0 104.98 90.0 , V=923.18 Space group: C12/M1 (12)

Oberti R , Ungaretti L , Cannillo E , Hawthorne F C , European Journal of Mineralogy , 4 (1992) p.425-439, The behaviour of Ti in amphiboles: I. Four- and six-coordinate Ti in richterite, Sample: R(9) Potassium-fluor-richterite