1. Jade wrapped in stone but not carved.

Raw jade, also known as jade. "Han Shu Biography of the Western Regions in the Kingdom of Khotan": "To the east, water flows to the east, salt is injected, and rivers flow out.

Rich in jade. Note: "Jade is the essence of jade. Stone is like jade. "

2. Metaphor is an unknown talent.

Original jade refers to natural jade that has not been carved.

The so-called "original jade" is actually a jade with a shell. Only water stones and jade formed by deposition have shells.

There are many places in China, such as nephrite and water stone in Xinjiang, river felt jade (jade with skin) in Xiuyan, Liaoning, tuberculosis turquoise in Hubei, and jade with skin (all-inclusive jade is a kind of gambling stone) is sold in the jewelry trading center in Guangzhou, Fujian, Yunnan.