What is the use of magnesium ore

It is used in many industries, such as the production of alloys and other materials, pharmaceuticals, chemicals, etc.
Boromagnesite can be used to produce
Boric acid
Magnesium carbonate (used as an excellent filler and thickener for rubber products, which can improve the output and quality of rubber products. It can also be used as an acid remover in medicine, as well as a drying agent, color protection agent, cutting agent and anti-caking agent. It can also be used to manufacture high-grade glass products, magnesium salts, pigments, oil paints and daily chemicals.)
Magnesite is the general name of minerals with high magnesium content. For example, brucite is a rare high-magnesium mineral, also known as "magnesite". Its chemical composition is Mg (OH) 2, the theoretical content of MgO is 69%, and the metal magnesium content is 41.6%. It is a high-quality magnesium smelting ore. The periclase (mainly MgO) made from brucite after calcination is a high-grade refractory.