AM_Magnesiokatophorite Formula: Si7.24 Al1.98 Mg2.42 Fe1.4 Ti.04 Ca1.12 Na1.58 K.022 H1.74 O23.74 F.26 Name: Magnesiokatophorite Unit cell: 9.737 17.875 5.314 90.0 104.64 90.0 , V=894.87 Space group: C12/M1 (12)

Hawthorne F C , Oberti R , Sardone N , The Canadian Mineralogist , 34 (1996) p.577-593, Sodium at the A site in clinoamphiboles: the effects of composition, on patterns of order, Sample: A7 - D163 N.2