AM_Realgar_9 Formula: As (S.663 Se.338) Name: Realgar Unit cell: 9.4342 13.6374 6.6443 90.0 106.523 90.0 , V=819.54 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: S1Se1-1