AM_Freibergite Formula: Cu5.82 Zn.42 Ag4.2 Fe1.56 (Sb3.88 As.12) S13 Name: Freibergite Unit cell: 10.61 10.61 10.61 90.0 90.0 90.0 , V=1194.39 Space group: I-43M (217)

Peterson R C , Miller I , Mineralogical Magazine , 50 (1986) p.717-721, Crystal structure and cation distribution in freibergite and tetrahedrite, Locality: Keno Hill, Yukon, Canada