This chemical is a kind of bulk pharmaceutical chemical. There are some basic informations about this crude drug: (1)Classification: ate; (2)Type: Carbonate;(3)CAS No.: ; (4)Other Names: ; (5)MF: MgCO₃; (6)Color: Colorless, white, pale yellow, pale brown, faintly pink, lilac-rose.

Magnesite is magnesium carbonate, MgCO₃. (as Fe2+) substitutes for magnesium (Mg) with a complete solution series with siderite, FeCO₃. , manganese, cobalt, and nickel may also occur in small amounts. , (Mg,Ca)CO₃, is almost indistinguishable from magnesite.

Magnesite can be used as a slag former in steelmaking furnaces, in conjunction with lime, in order to protect the magnesium oxide lining. It can also be used as a catalyst and filler in the production of synthetic rubber and in the preparation of magnesium chemicals and fertilizers.

Similar to the production of lime, magnesite can be burned in the presence of charcoal to produce MgO, otherwise known as periclase. Such periclase is an important product in refractory materials. Magnesite can also be used as a binder in flooring material. In fire assay, magnesite cupels can be used for cupellation as the magnesite cupel will resist the high temperatures involved.