Magnesite is a magnesium carbonate mineral, which is the main source of magnesium. The magnesium-containing solution acts on the calcite post-converter magnesia carbon brick, which will turn the calcite into magnesite, so magnesite also belongs to the calcite family. Magnesite is a kind of magnesium carbonate mineral, which is the main source of magnesium. After the magnesium-containing solution acts on calcite, it will turn the calcite into magnesite, so magnesite also belongs to the calcite family. Rocks rich in magnesium can also change into magnesite. Magnesite often contains iron, which is the result of replacing magnesium with iron manganese. Magnesite is white off-white, with glassy luster, iron-containing magnesite will appear yellow to brown. If it shows crystals, it is granular, if it does show crystals, it is lumpy. In addition to refining magnesium, magnesite can also be used as refractory materials magnesium compounds