AM_Bechererite_1 Formula: Zn8 S Si H12 O23 Name: Bechererite Unit cell: 8.319 8.319 7.377 90.0 90.0 120.0 , V=442.13 Space group: P113 (1)

Hoffmann C , Armbruster T , Giester G , American Mineralogist , 82 (1997) p.1014-1018, The acentric structure (P3) of bechererite, Zn7Cu(OH)13[SiO(OH)3SO4], Note U(1,2) for Zn2, Zn21, and O1 changed to match symmetry constraints.