AM_Erniggliite Formula: Sn Tl2 As2 S6 Name: Erniggliite Unit cell: 6.68 6.68 7.164 90.0 90.0 120.0 , V=276.85 Space group: P11-3 (1)

Graeser S , Schwander H , Wulf R , Edenharter A , Schweizerische Mineralogische und Petrographische Mitteilungen , 72 (1992) p.293-305, Erniggliite (Tl2SnAs2S6), a new mineral from Lengenbach, Binntal (Switzerland):, description and crystal structure determination based on data from synchrotron radiation, Locality: Lengenbach, Binntal, Switzerland