New member of the sartorite homologous series (N=4). Its Ag content, although small, is important.
The structure is a 3-fold superstructure, where the unit cell parameter (7.9 Å) is tripled. It consists of: - As-Sb rich slabs - crankshaft chains (few types) - isolated (As,Sb)-S polyhedra There are 3 different broad ribbons consisting of double layer fragments; 2 of them contain 2 asymmetric fragments with long crankshaft chains, while the third fragment type, containing Ag, has small mirror-symmetrical metalloid groups and is devoid of the crankshaft chains. The above is likely a cause of an order-disorder character. The structure is different from that of veenite and dufrénoysite.
