AM_Pentlandite
Formula: (Ni4.5 Fe4.5) S8
Name: Pentlandite
Unit cell: 10.03 10.03 10.03 90.0 90.0 90.0 , V=1009.03
Space group: FM3M (225)

Pearson A D , Buerger M J , American Mineralogist , 41 (1956) p.804-805, Confirmation of the crystal structure of pentlandite.