When naturallyoccurring magnesium carbonate (magnesite) is fired at around 800-1,000 C itbecomes what is known as Light Calcined Magnesite.
The resulting magnesium oxide grains have the outer form of the magnesiumcarbonate and depending on the firing temperature are porous and more or lessreactive due to their large inner surface area.
Calcined Magnesieis also used for manufacturing of Magnesium Sulphate, Construction ofindustrial floors (sorel cement), Magnesium Cement in Mill Stone/Emery Stone, asmagnesium carrier in fertilizers, in production of paper and pulp , inhydrometallurgy, as catalyser, in wastewater treatment, as fuel additive, incosmetics, sugar refining and polymer additives.