AM_Montmorillonite_4 Formula: Si3.9 Al.86 Cs.08 Fe.1 Mg.14 O10 H Name: Montmorillonite Unit cell: 5.191 8.976 11.32 90.0 100.56 90.0 , V=518.52 Space group: C12/M1 (12)

Gournis D , Lappas A , Karakassides M A , Tobbens D , Moukarika A , Physics and Chemistry of Minerals , 35 (2008) p.49-58, A neutron diffraction study of alkali cation migration in montmorillonites, Sample: Cs-mont-300