AM_Marrite
Formula: Pb Ag As S3
Name: Marrite
Unit cell: 7.2705 12.6319 5.9853 90.0 91.228 90.0 , V=549.57
Space group: P121/A1 (14)

Wuensch B J , Nowacki W , Zeitschrift fur Kristallographie , 125 (1967) p.459-488, The crystal structure of marrite, PbAgAsS3, Locality: Lengenbach quarry, Binnatal, Switzerland