AM_Richterite_56 Formula: O23.336 (F.664 Na1.173) K.772 Ti.708 Fe.583 Mg3.889 Mn.01 Ca.966 Si7.73 Al.08 H1.336 Name: Richterite Unit cell: 9.948 18.025 5.281 90.0 104.72 90.0 , V=915.87 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(5) Potassium-fluor-richterite