AM_Freibergite_1 Formula: Ag3.54 Cu6.3 Zn1.44 Fe.72 Sb4 S13 Name: Freibergite Unit cell: 10.576 10.576 10.576 90.0 90.0 90.0 , V=1182.94 Space group: I-43M (217)

Rozhdestvenskaya I V , Zayakina N V , Samusikov V P , Mineralogiceskij Zhurnal , 15 (1993) p.9-17, Crystal structure features of minerals from a series of, tetrahedrite-freibergite, Sample: 3