Kaoline :: Kaoline (n.) A very pure white clay, ordinarily in the form of an impalpable powder, and used to form the paste of porcelain; China clay; porcelain clay. It is chiefly derived from the decomposition of common feldspar..
Kaolinization :: Kaolinization (n.) The process by which feldspar is changed into kaolin.
Kaolinize :: Kaolinize (v. t.) To convert into kaolin.