2 SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
2.C Metal Sulfides, M:S = 1:1 (and similar)
2.CB With Zn, Fe, Cu, Ag, Au, etc
2.CB.75 Vulcanite CuTe
Space Group Pmnm
Point Group 2/m 2/m 2/m