Pu, the ancients said that there are stones and jade, or uncut jade. "Everything is made of stone": "Wang Nai makes jade people sort out treasures and get them." This refers to jade. It can also be compared to an unknown talent.
Second, the detailed explanation:
Rough jade
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. Jade is rich in 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) in the jewelry trading center in Guangzhou, Fujian, Yunnan.
Gujin gem
Mencius Hui Liang: "There are rough jade here today. Although it is 10,000 tons, it must be carved by jade people." This refers to uncut jade. Jade has been cherished and regarded as a treasure since ancient times. Song Yingxing, a scientist in the Ming Dynasty, recorded in detail in Heavenly Creations: "Where jade is hidden, its price is very low. The jade in the garden is flawless, and the ancient emperors used it as a seal. The so-called priceless treasure is hard to come by. " Five or six inches flawless, when a tragedy, this is a treasure. "This shows that the original stone jade is a very precious treasure in ancient times. At the beginning of this century, Xie Bin visited Xinjiang and saw Hetian jade. " The price of leather is particularly high. Peels are sprinkled with gold, autumn pears, chicken blood and so on. Those who cover jade with pure jade often have hundreds of gold, while those who pick jade don't talk about jade, but only treasure. It can be seen that even in modern times, the original jade stone is still very valuable.
Pu Yu pi pi
According to its composition and occurrence, the skin of rough jade can be divided into three categories: color skin, sugar skin and stone skin. Color skin: a layer of maroon or brownish yellow jade skin distributed on the outer surface of Hetian jade. As mentioned above, jade skin has various colors. The jade world is named after various colors, such as black skin and deerskin. It can be seen from the skin color that the quality of jade such as black skin and deerskin is mostly the best white jade. Jade of the same quality, such as autumn pears, is more valuable. The thickness of jade skin is very thin, generally less than1mm. Colored skin has a variety of shapes, some are cloud-shaped, some are pulse-shaped, and some are scattered. The formation of color skin is caused by the transformation of ferrous oxide in Hetian jade into ferric oxide under oxidation conditions, so it is secondary. Experienced jade pickers go to the middle and lower reaches to find leather-colored jade; Upstream, there are few opportunities to find colored jade. In addition, mountain materials with skin can be found occasionally near the cracks of primary jade ore bodies, which are also formed by secondary oxidation.