Explanation
Also known as chalk soil, clay powder, or white clay. A soft, brittle earthy limestone. Pure ones are white, with low water absorption, easy adhesion, strong oil absorption, and uniform powder particles. Mainly used as filler for paper making, rubber and oilcloth; It can also be used as a diluent (toner) for white coatings and colored pigment, as well as raw materials for ceramics and materials for foundry molding sand. It can be used as a medicine, has a warm nature, treats gastrointestinal diseases, and has astringent and anti diarrhea effects. It has been produced in Handan, Hebei, Jingdezhen, Jiangxi, and other places.
Classification
Natural materials and products -> Mineral materials