The crystal structures of heptasartorite, Tl 7 Pb 22 As 55 S 108 , and enneasartorite, Tl 6 Pb 32 As 70 S 140 , two members of an anion-omission series of complex sulfosalts from Lengenbach, the Swiss Alps, and comparison with the structures of As–Sb sartorite homologues

Heptasartorite, Tl 7 Pb 22 As 55 S 108 , enneasartorite, Tl 6 Pb 32 As 70 S 140 and hendekasartorite, Tl 2 Pb 48 As 82 S 172 , three members of the anion-omission series of ‘sartorites’ from the Lengenbach quarry at Binntal, Wallis, Switzerland