AM_Posnjakite Formula: Cu4 S O11 H8 Name: Posnjakite Unit cell: 10.578 6.345 7.863 90.0 117.98 90.0 , V=466.06 Space group: P1A1 (7)

Mellini M , Merlino S , Zeitschrift fur Kristallographie , 149 (1979) p.249-257, Posnjakite: [Cu4(OH)6(H2O)O] octahedral sheets in its structure, Locality: Fowey Consols, England