AM_Rhodesite Formula: K.249 Ca.504 Si6 O17.716 H12 Name: Rhodesite Unit cell: 23.416 6.555 7.05 90.0 90.0 90.0 , V=1082.12 Space group: PMAM (51)

Hesse K F , Liebau F , Merlino S , Zeitschrift fur Kristallographie , 199 (1992) p.25-48, Crystal structure of rhodesite, HK1-xNax+2yCa2-y{lB,3,2}[Si8O19]*(6-z)H2O,, from three localities and its relation to other silicates with dreier double layers, Locality: Zeilberg, Germany