AM_Realgar_27 Formula: As S Name: Realgar Unit cell: 9.325 13.571 6.587 90.0 106.38 90.0 , V=799.75 Space group: P121/N1 (14)

Mullen D J E , Nowacki W , Zeitschrift fur Kristallographie , 136 (1972) p.48-65, Refinement of the crystal structures of realgar, AsS and orpiment, As2S3, Locality: Lengenbach quarry, Binnatal, Switzerland