AM_Pyrrhotite
Formula: Fe7 S8
Name: Pyrrhotite
Unit cell: 11.902 6.859 22.787 90.0 90.43 90.0 , V=1860.18
Space group: F12/D1 (1)

Tokonami M , Nishiguchi K , Morimoto N , American Mineralogist , 57 (1972) p.1066-1080, Crystal structure of a monoclinic pyrrhotite (Fe7S8)