AM_Keilite_1 Formula: Fe.558 Mg.321 Mn.048 Ca.038 Cr.029 Zn.003 Ti.001 S Name: Keilite Unit cell: 5.2 5.2 5.2 90.0 90.0 90.0 , V=140.61 Space group: FM3M (225)

Shimizu M , Yoshida H , Mandarino J A , The Canadian Mineralogist , 40 (2002) p.1687-1692, The new mineral species keilite, (Fe,Mg)S, the iron-dominant, analogue of niningerite