AM_Chloritoid
Formula: Al3.84 Fe1.93 Mg.15 Si2 O14
Name: Chloritoid
Unit cell: 9.46 5.5 9.15 97.05 101.56 90.1 , V=462.72
Space group: C-1 (2)

Hanscom R , American Mineralogist , 65 (1980) p.534-539, The structure of triclinic chloritoid and chloritoid polymorphism