2 SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
2.A Simple Sulfides, Selenides, etc
2.AB Ni-metalloid alloys
2.AB.15 Maucherite Ni11As8
Space Group P 41212,P 43212
Point Group 4 2 2