清代和田糖青色玉-牧童骑水牛 拍品尺寸:H:4.5cm, W:7cm. Thickness:3.8cm,Weight:162g A Finely Chinese Vintage Natural HETIAN Seed Jade Carving Statue - Urchins & Ox,looks very vivid and lifelike. Tips about Chinese Hetian Nephrite Jade. Hetian jade is a nephrite jade and is regarded as the only true jade in ancient China until Burmese jadeite becomes popular in late Qing Dynasty. Normally, the Hetian jade is silky, exquisite, moist, and bright. Hetian nephrite jade is called 'China stone' by Gem and Jewelry Trading Association of China. The hardness of the Hetian jade is between 6 to 6.5. The density is between 2.96 to 3.17. Most of the nephrite jade in the world are green. However, there is a wide variety of Hetian nephrite jade and the white Hetian nephrite jade is the best. The nephrite jade is a naturally occurring and coherent aggregate of several minerals. The qualified nephrite jade is generally recovered from alluvial pebbles and boulder, or cut off from the rocks in which it originally formed. The process of producing a Hetian nephrite jade art craft is complicated, including cutting, grinding, and polishing by several experienced artists. For Chinese, Hetian jade is collectible and has the potential to the increase in value.7.68 5,71 1.89 3.11.