White crystalline salt that occurs in nature as the mineral magnesite and may be prepared artificially by precipitation. It is used in pigments, inks, glass, ceramic glazes, and dentifrice. Magnesium carbonate has also been used as a sorbent powder for water-free (dry) cleaning of jewelry, doll hair, and other items. Aqueous solutions of magnesium carbonate are used for neutralization and alkalization of paper.
