AM_Freibergite_2 Formula: Ag6 (Cu4.2 Zn.6 Fe1.2) Sb4 S12.01 Name: Freibergite Unit cell: 10.492 10.492 10.492 90.0 90.0 90.0 , V=1154.98 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: 4