AM_Magnesiokatophorite_1 Formula: Si7.16 Al1.84 Mg2.34 Fe1.82 Ti.02 Ca1.26 Na1.446 K.036 H1.64 O23.64 F.36 Name: Magnesiokatophorite Unit cell: 9.775 17.928 5.313 90.0 104.69 90.0 , V=900.65 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: A8 - D167 N.1