Metakaolin vs. Kaolin — What's the Difference?

Metakaolin is the anhydrous calcined form of the clay mineral kaolinite. Minerals that are rich in kaolinite are known as china clay or kaolin, traditionally used in the manufacture of porcelain.

A fine clay used in ceramics and refractories, as a filler or coating for paper and textiles, as an additive in food and toothpaste, and as an antidiarrheal drug.

A dehydroxylated form of the clay mineral kaolinite.

A fine clay, rich in kaolinite, used in ceramics, paper-making, etc.

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.

A fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)