AM_Realgar_12 Formula: As (S.572 Se.427) Name: Realgar Unit cell: 9.4424 13.64 6.6537 90.0 106.506 90.0 , V=821.64 Space group: P121/N1 (14)

Kyono A , American Mineralogist , 94 (2009) p.451-460, Molecular conformation and anion configuration variations for As4S4 and As4Se4, in an anion-substituted solid solution, Locality: synthetic, Note: S1Se1-5