AM_Langite_1 Formula: Cu4 S (O12 H10) Name: Langite Unit cell: 7.118 6.034 11.209 90.0 90.02 90.0 , V=481.43 Space group: P1C1 (7)

Galy J , Jaud J , Pulou R , Sempere R , Bulletin de Mineralogie , 107 (1984) p.641-648, Structure cristalline de la langite, Cu4[SO4(OH)6H2O]*H2O, Locality: Mazega, Aveyrone, France