Dolomite is a carbonate mineral, including ankerite and manganese dolomite. Its crystal structure is like calcite and is often rhombohedral. It will bubble slowly when exposed to cold dilute hydrochloric acid. Some dolomite emits orange light under cathode ray irradiation. Dolomite is the main mineral composition of dolomite and dolomitic limestone. Dolomite can be used in building materials, ceramics, glass and refractory materials, chemical industry, agriculture, environmental protection, energy conservation and other fields. It is mainly used as flux for basic refractory and blast furnace ironmaking. Production of calcium magnesium phosphate fertilizer and preparation of magnesium sulfate; As well as ingredients for producing glass and ceramics.