AM_Oxy-kaersutite
Formula: Na.54 K.44 Ca1.92 Mn.01 Mg3.133 Fe1.053 Ti.514 Al2.49 Si5.88 O24
Name: Oxy-kaersutite
Unit cell: 9.892 18.064 5.3116 90.0 105.388 90.0 , V=915.10
Space group: C12/M1 (12)

Hawthorne F C , Grundy H D , Mineralogical Magazine , 39 (1973) p.390-400, The crystal chemistry of the amphiboles II. Refinement of the crystal structure, of oxy-kaersutite, Locality: Kangerdluarsuq, Southern Greenland