Chinese “four great jade” - China Culture
Dushan jade. Dushan jade is also known as “Nanyang jade” or “Nan jade”, which is produced in Dushan just north of Nanyang city. As one of the Chinese four great jades, the quality of Dushan jade is tough and dense, exquisite, soft and moist, and its color is transparent. It has six colors: green, white, yellow, purple, red and black.