Cai Pengxi took the jade plaque back in his hand and gently touched it, "A string of colorful crane dzi." ”

When Yu Yao heard this, he roughly guessed a few points, "Is it difficult, isn't it Lao Hetian?"

"Yes. He actually made a string of his own! I don't know if he got the secret recipe from the Wa Kingdom. I recognized it as an old one. ”

"It is said that the secret recipe of dyeing of Lao Hetian has also been lost. This opponent of yours seems to have conceited capital. ”

"I didn't expect him to master such amazing methods, not only the color, but also the pulp is also natural!" Cai Pengxi shook his head lightly, "He studied in the Wa Kingdom in his early years, but he has some connections. ”

"I haven't seen the real heirloom yet. Now the new crane days on the market are generally not of high grade. Yu Yao whispered.

Crane Heaven, which is considered a specialty of the Wa Kingdom, is generally made into beads. The Crane Dzi is dyed with walrus ivory, and the Crane Dzi is dyed with fossil teeth from ancient animals.

Fossilized teeth are polished into beads and then dyed with natural dyes, secret methods. Because the fossil tooth itself has lines, after dyeing, the color and texture complement each other, and it is very beautiful.

The origin of the name Crane is due to the early staining of the Crane Dzi, which is mainly red, with the white background of the tooth fossil, much like the top of the head of the red-crowned crane.

In fact, when the crane was first introduced into China, it was directly called Crane Dinghong, and it also caused misunderstandings, and some people thought that it was made of the skull of the red-crowned crane. In fact, the skull of the red-crowned crane is so thin that it cannot be made into beads at all.

Among the cultural products, there is also a kind of bead called crane top red, also called bird head beads. Yellow base, with a red circle on it, like yellow eyes and red pupils. This one was also mistaken for a red-crowned crane skull.

In fact, the bird head beads are made from the skull of the helmeted hornbill, because the skull of the helmeted hornbill is solid, red on the outside and yellow on the inside, so it can be made into this kind of bird head beads. Bird's head beads were used as raw materials for cultural toys in ancient China. However, the helmeted hornbill is now a Class 1 protected animal under the HSD Convention and is strictly prohibited from international trade.

So, when looking at a thing, you really can't just look at the name. Both the bird's head bead and the crane dzi were once called crane top red, in fact, they have nothing to do with the red-crowned crane; the bird head bead is the natural head color of the helmeted hornbill, and the crane sky is the fossil staining of animal teeth.

The secret recipe of the ancient dyeing method of Hetian is said to have been lost.

Compared with the old crane dzi, the naturalness and integration of colors are not the same. Moreover, the old crane dzi is often coated with pulp, and the texture is more moist, and it is a collection with wide fans in the Wa Kingdom.

The most important thing is that Cai Pengxi said that the person who fought with him took out a string of colorful cranes.

The so-called colorful crane sky is dyed with five colors on the same crane dzi. Natural dyes, dyed with five colors on a small bead, can not be mixed, even if you master the ancient secret recipe, this difficulty can be imagined.

Among the old cranes handed down from generation to generation, there are the most monochrome colors, two or three colors are rare, and more than five colors are treasures.

In the historical materials of the Wa Kingdom, it is recorded that a famous craftsman imitated the seven colors of the rainbow and made a colorful crane sky, which was purchased at a high price at that time. However, Yu Yao has not heard of the real heirloom.

"Strictly speaking, Hetian is not considered jade!" Yu Yao said softly.

"If it's a horn, I can naturally say that it's not jade. But Hetian's raw material is fossils, and fossils can also be classified as jade, although it can be disputed, but it is inconvenient for me to argue, so he will be regarded as nitpicking!" Cai Pengxi replied.

Yu Yao nodded, "Then what the old gentleman asked him to see, it must be a real jade?"

"That's nature, I showed him an old jade duck. ”

Yu Yao couldn't help frowning, the old oil is not difficult to identify for a master, is it possible that the old oil jade duck shown to the other party by the talented Peng Xi is different?

Oil extraction was originally a method of jade counterfeiting, in order to make the jade appear color and pulp.

The general technique is to soak the jade with pigment first, dye it and then fry it in oil, so that the color does not fall off and the surface is more oily after oiling.

This oil extraction is also divided into old oil extraction and new oil extraction.

The old oil, also known as the ancient method of oil, at least in the Song Dynasty, uses natural dyes, and the formula of the oil and the temperature when frying are also very particular, so although it is fake, the beautification effect is still good.

The new oil extraction, which appeared in the Qing Dynasty, is much inferior to the ancient method, and the effect is not very good. There is a figurative saying in the industry about the new oil extraction, which is called fried ghosts.

The jade of the old oil is relatively more abundant on the Song jade, and it has not faded after thousands of years; although it was a jade forgery in the past, the collection value is still very large today.

Seeing Yu Yao frowning, Cai Pengxi smiled slightly, "That old oil jade duck is also a piece of Song jade, which is made of a piece of Hetian seed material, and it has a skin color; ”

On the seed material of Hetian, there is generally a skin color, which is formed by the infection of the environment in a long period of time from the collapse and collision of the seed material to being washed by the river. Of course, this is not absolute, there are also light white seeds, that is, there is only a pore-like epidermis, but nothing else.

Nowadays, Hetian seeds often appreciate in value because of their beautiful skin color, but in ancient times, they were generally removed. It was not until after the Qianlong Dynasty of the Qing Dynasty that there were more leather color carving works.

It can't be said that there is no skin left on Song Yu, but it must be very rare.

"I see, you show him this old jade duck, there are two traps. One is because of the color of his skin, he may have broken the wrong generation, not thinking about the Song Dynasty, but thinking about the Qing Dynasty. The other, even if he was sure that it was Song Yu, the old oil on this skin color was difficult to identify, and he might think that the original skin color was like this!"

Cai Pengxi nodded, "It's effortless to talk to you." ”

Yu Yao couldn't help but sort it out in his heart at this time, because the process was quite interesting.

The two fought for treasures, Cai Pengxi took out an old jade duck, and the other party took out a string of colorful crane dzi. At the same time, the other party not only accurately judged the age of this old oil jade duck, but also had insight into the old oil part of the highly confusing skin color.

As a result, Cai Pengxi was defeated and lost the colorful jade dove head he took out. Unexpectedly, the other party didn't take the fruits of victory to stop, but took his original color head, the jade card of the unparalleled character, and tortured Cai Pengxi again, but Cai Pengxi pointed out Zhu Shiyun and won this jade card again!

Yu Yao couldn't help but look at Cai Pengxi again, and asked the second doubt: "Old man, it is said that the other party took the jade dove's head, it shouldn't be not cherished, right?