AM_Richterite_53 Formula: O22.837 F1.163 Na1.168 K.266 Ti.036 Fe.266 Mg4.696 Mn.013 Ca1.393 Si7.629 Al.358 H.837 Name: Richterite Unit cell: 9.884 18.005 5.274 90.0 104.65 90.0 , V=908.05 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(1) Fluor-richterite