Magnesite is the general name of minerals with high magnesium content. For example, brucite is a rare high magnesium mineral, also known as "magnesium hydroxide", with chemical composition of Mg (OH) 2,


MgO


The theoretical content is 69% and the metal magnesium content is 41.6%. It is a high-quality magnesium ore. Periclase (mainly composed of MgO) made of brucite after roasting is a high-grade refractory.