GB/T 16552-20 10 The names of jewelry and jade are generic as long as they relate to all kinds of natural jewelry and artificial jewelry and jade. Among them, there is one of the jade names: the name with place name has no origin meaning, which means that Hetian jade is not necessarily nephrite produced in Hetian, Xinjiang. How to name each gem depends on the theory of gem, and each gem has a detailed explanation. I suggest you read Systematic Gemmology, which is the most authoritative jewelry teaching material in China at present.

The local naming rules can also be referenced, and the whole does not conflict with systematic gemmology.

As for Kunlun jade, Hanyu jade, Russian jade, gobi jade jade, Yutian jade and Yecheng jade, they are all in systematic gemmology, so they will not be described here.