AM_Gerstleyite
Formula: Na2 (Sb7.2 As.8) S13 O2 H2
Name: Gerstleyite
Unit cell: 9.911 23.05 7.097 90.0 127.85 90.0 , V=1280.21
Space group: C1M1 (8)

Nakai I , Appleman D E , Chemistry Letters , 1981 (1981) p.1327-1330, The crystal structure of gerstleyite Na2(Sb,As)8S13*2H2O:, the first sulfosalt mineral of sodium, Locality: Baker mine, Kern County, Boron, California, USA