Formula: Pb9.167 Sb9.833 S23 Cl O.5
Name: Pillaite
Unit cell: 49.49 4.1259 21.828 90.0 99.62 90.0 , V=4394.40
Space group: C12/M1 (12)

Meerschaut A , Palvadeau P , Moello Y , Orlandi P , European Journal of Mineralogy , 13 (2001) p.779-790, Lead-antimony sulfosalts from Tuscany (Italy). IV. Crystal structure of pillaite,, Pb9Sb10S23ClO0.5, an expanded monoclinic derivative of hexagonal Bi(Bi2S3)9I3,, from the zinkenite group, Locality: Buca della Vena mine, Tuscany, Italy, Note: changed Pb2(z) to 0.2572 to match reported bond distances