China has a history of jade, which can be traced back to the Tang Dynasty. It is the first mine owner, stone supplier, processor, and seller. After that, there are experts, professors and researchers who specialize in studying geology. Since 1983, Ouyang Qiumei's research paper on jade has been published abroad, which has attracted everyone's attention.
Prior to that, the naming and definition of jade was named by people in these industries. Therefore, the definition of the old pit will be changed in this way.
Only those "glass types", "ice species", "sweet seeds", "bean seeds" and "spinach green", "lake water green" and so on will appear. Such a reference to the case of a similar substance in nature is named.
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