Explanation

It is also called jiaoling stone and microcrystalline kaolinite. layered silicate mineral. A clump like aggregate that appears fluffy under an electron microscope. White, containing impurities dyed yellow, rose red, and blue-green. Earthy luster, slightly greasy luster. Smooth feeling. Add water to expand, increase the volume several times and turn into a paste. The volume shrinks after being heated and dehydrated. It is mainly produced in the weathering crust of the basic volcanic rock, and can also be formed by the decomposition of volcanic ash deposited on the sea floor. montmorillonite has strong cation exchange ability and strong adsorption, and can be used as bleaching agent, adsorbent, filler, etc.

Classification