Kaolinite

Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5(OH)4.

Kaolinite is a clay mineral, part of the group of industrial  minerals, with the chemical composition Al2Si2O5(OH)4. It is a  layered silicate mineral, with one tetrahedral sheet linked through  oxygen atoms to one octahedral sheet ofalumina octahedra.[4] Rocks  that are rich in kaolinite are known as china clay, white clay, or  kaolin.Kaolin is used in ceramics, medicine, coated paper, as a food  additive, in toothpaste, as a light diffusing material in white  incandescent light bulbs, and in cosmetics. It is generally the main  component in porcelain.It is also used in paint to extend titanium dioxide (TiO2) and modify  gloss levels; in rubber for semi-reinforcing properties; and in  adhesives to modify rheology.[8]Kaolin was long used in the production of common smoking pipes in  Europe and Asia.The largest use is in the production of paper, including ensuring the  gloss on some grades of paper. Commercial grades of kaolin are  supplied and transported as dry powder, semi-dry noodle or as liquid  slurry.Best regards

Kaolinite