Barite is a non-renewable resource and one of the export-oriented mineral products in China. It is widely used as weighting agent for drilling mud in petroleum and natural gas, and its usage in barium chemical industry, packing and other fields is also increasing year by year. China is rich in barite resources, distributed in 2 1 province (region), with a total ore reserve of 360 million tons, ranking first in the world 1. Can be use as contrast agent of digestive system in medical treatment. Barite can also be used as a component pigment of coatings to improve the covering and compactness of paint films. To some extent, the performance of the coating is improved.

Medically, it can be used to check the digestive tract, that is, barium meal. Because it is insoluble in water and lipids and will not be absorbed by gastrointestinal mucosa, it is basically non-toxic to people. Barium meal radiography, that is, barium meal radiography of digestive tract, refers to an examination method that uses barium sulfate as contrast agent to show whether there is any lesion in digestive tract under X-ray irradiation. The principle is that X-ray examination presents a natural contrast between black and white due to the different densities and thicknesses of various organs and tissues in the human body. However, in some parts of the human body, especially in the abdomen, because the density of several internal organs and tissues is similar, it is necessary to introduce a contrast agent (such as medical barium sulfate) that is harmless to the human body and artificially improve the display contrast to achieve the ideal inspection effect. This method of examination is called X-ray photography in clinic.