Hydrothermal Synthesis of Interstratified Lizardite/Saponite

A novel interstratified lizardite/saponite which has never been found in nature is hydrothermally synthesized from uniform Si‐Al‐Mg gels at 300°C. The stacking ratios of lizardite layer to saponite layer in the structure are designed between 3/1 and 1/3. These materials give partially ordered X‐ray diffraction patterns depending on the layer composition. The lattice‐fringe image of the L/S= 1/1 sample shows that platelet particles have a thickness of 17.5 Å consisting of a lizardite layer (7.5 Å) and a dehydrated saponite layer (10.0 Å). They can disperse in water like smectite.