Figure 4
Structure model of fibrous ferrierite. (a) Projection along the c axis. K+ (purple circles) and sites of the H2O molecules (red) are in the ten-ring channels. Mg2+ (orange) with H2O molecules (red) of the Mg(H2O)62+ complex are in the [010] channels and between six-rings in this view. (b) Projection along the b axis. Legend: light-blue polyhedra = tetrahedra centred by Si; blue balls = Si atoms; light-blue balls = Al atoms substituting Si atoms; red balls = O atoms; orange balls = Mg atoms; violet balls = K atoms. The plots were created using the VESTA software (Momma & Izumi, 2011). |