AM_Thorikosite
Formula: (Pb1.5 Sb.3 As.2) O2 Cl H.5
Name: Thorikosite
Unit cell: 3.919 3.919 12.854 90.0 90.0 90.0 , V=197.42
Space group: I4/MMM (139)

Rouse R C , Dunn P J , Journal of Solid State Chemistry , 57 (1985) p.389-395, The structure of thorisokite, a naturally occurring member of the bismuth oxyhalide group