KAOLIN is a hydrated silicate aluminium crystalrial, which is produced over millions of years by the hydrothermal decomposition of granite minerals, or âchina clay,â as it is widely called. The fine particulate scale, platform or lamellar particle shape and chemical inertness define the hydrous kaolin. Metakaolin is processed to create an amorus, white mineral pozzolanic filler to be used in cement goods by kaolin calcination.We listen to the needs of our clients and provide them with an outstanding selection of Kaolin Clays. It is developed by our experts, making use of superior ingredients.