AM_As4S5
Formula: As4 S4.93
Name: As4S5
Unit cell: 19.352 10.166 8.697 90.0 90.0 90.0 , V=1710.98
Space group: PCCN (56)

Bindi L , Bonazzi P , American Mineralogist , 92 (2007) p.617-620, Light-induced alteration of arsenic sulfides: A new product having an, orthorhombic crystal structure