AM_Orpiment_1
Formula: As2 S3
Name: Orpiment
Unit cell: 11.46 9.57 4.22 90.0 90.5 90.0 , V=462.80
Space group: P121/N1 (14)

Morimoto N , Mineralogical Journal , 1 (1954) p.160-169, The crystal structure of orpiment (As2S3) refined, Locality: Saimoku, Japan