Nanhong is gorgeous in color, moist and rich in perception, and richer in color. Nanhong can be divided into brocade red, persimmon red, rose red, cinnabar red, red and white material and red material according to color. Among them, the most traditional persimmon red, rare rose red, brocade red and cherry red are all high-grade colors; The main producing areas are Liangshan in Sichuan and Baoshan in Yunnan, and there is also a small amount of production in Diebu, Gansu. Due to the harsh formation conditions, it is difficult to mine, and the output of Nanhong is very low, so its value is also high.