AM_Realgar_21 Formula: As S.9 Se.1 Name: Realgar Unit cell: 9.3805 13.6021 6.6197 90.0 106.442 90.0 , V=810.10 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: S1Se1-17