Chu Fengping seemed to have guessed that Yang Jiuzhou would give such an answer at this time. He shook his head directly, and then rotated the original stone clockwise again. Under the illumination of the light, a more dazzling light appeared.

Purple appeared in everyone's eyes.

"In the process of judging the original stone, such purple light is called light and shadow. Once there is light and shadow that is not white in the original stone, it means that the jade treatment inside should have mutated, which is the process of our jade appreciation.

Among them, variants often appear."

Listening to Chu Fengping explaining the reasons to himself at this time, Yang Jiuzhou himself acted very seriously, nodding gently while listening. At the same time, his head wrinkled tightly, obviously trying hard.

Digesting the relevant knowledge Chu Fengping told him at this time.

After telling Yang Jiuzhou the first situation, Chu Fengping directly placed the rough stone gently on the table, and then began to rub one of the corners with his hands.

During the process of mining raw stones, there are always many edges and corners, but this time the foot that Chu Fengping rubbed began to slowly show a black color during the entire rubbing process.

texture.

Generally, when the pulp on the outside of jade is rubbed out with your hands, it will turn into a light yellow powder.

This is the so-called coating powder on the outside of jade. The process of jade formation and related conditions are very cocoa, so the size and quantity of the distribution range of the coating itself, and even the coating, after the overall Baoyu, all have

It may determine the overall quality of the jade here.

But this was the first time I saw this kind of black texture Baojiang powder. Yang Jiuzhou let out a strange sigh and quickly stretched out his hand to rub the other corner.

After just rubbing it for a dozen times, the expression on Yang Jiuzhou's face changed from calm to excited.

"Brother Chu Fengping, can you introduce me to this method of rubbing the outer edges of rough stones? If this happens, will it prove that the rough stones inside are already treasures?

"

Completely different from his previous attitude, Yang Jiuzhou previously believed that he should have a certain identity and status in the field of jade appreciation. At least in terms of introducing jade, he had never convinced anyone.

But this time, Chu Fengping's absolute strength suppressed him, and Yang Jiuzhou could no longer admire him in his heart.

Unexpectedly, just by looking at the appearance of the rough stone that has not been completely dug out, we can easily tell whether the quality of the jade itself is good or bad.

If I can learn such a skill, then it would be completely reasonable for me to call myself brown eater when introducing jade in the future.

How could Chu Fengping not feel that now Yang Jiuzhou has completely regarded himself as a great god. While feeling a little proud in his heart, he is also particularly willing to do his best to tell as much as he can at this time.

Yang Jiuzhou has some relevant knowledge.

"The reason for the formation and quality of the patina on the outside of the original stone are exactly the same. The main reason why different colors appear during the rubbing process is because of the changes in the content of trace elements inside."

After saying this, Chu Fengping casually picked up the tool next to him, knocked off a small piece of the original stone coated with pulp, then put it in his hands and kept rubbing it. As the rubbing speed increased, the black

There are more and more powders inside, and the black color becomes thicker as it gets inside.

"Tell me what you saw?" Chu Fengping put the powder in his hand on the table in front of him, turned to Yang Jiuzhou and asked.

Yang Jiuzhou was like a child being asked a question by a teacher. After thinking carefully in his mind, he finally answered with some uncertainty.

"Does the current situation prove that the black powder is actually the trace elements that should be taken in during the formation process of jade, and the color of the trace elements is actually black, so the jade inside should be black jade?"

Although what Yang Jiuzhou said in answering Chu Fengping's question was not entirely true, and even what he said at this time was completely based on his own blind dreams, it cannot be said to be completely wrong.

At least Yang Jiuzhou said that the jade here should be black jade, which is actually the right answer.

"Appreciating the appearance of the original stone is actually a very profound knowledge in itself. Just through the various peripheral characteristics of the original stone, you can judge the quality of the jade itself based on the peripheral characteristics. This is actually deeper than the appreciation of the jade itself.

There are many.”

Chu Fengping subconsciously patted Yang Jiuzhou beside him, and then quietly began to open the second jade stone on the spot.

At this time, Wang Yunshi, who was standing by and watching all this, had an expression of extreme surprise on his face. He couldn't figure it out no matter what. He didn't expect that Chu Fengping was not only talented in appreciating antiques.

What is unique is that in terms of research on jade, he is even more powerful than Yang Jiuzhou from the Yang family, a famous jade family.

At this time, Chu Fengping was like a huge treasure, and at the same time, he was also like an extremely mysterious person. As for how many unique features he had in other aspects, Wang Yunshi had always been thinking in his heart until now.

I can't understand how many secrets he has yet to be discovered.

As the exchange between Wang Yunshi and Yang Jiuzhou deepened, Yang Jiuzhou felt more and more the gap between himself and Chu Fengping.

Yang Jiuzhou has always believed that in this aspect of jade appreciation, his understanding of the entire jade industry, and even his research on some of the more subtle aspects of jade, has already reached its peak.

But now it seems that the gap between myself and Chu Fengping is really not even a little bit. Just by studying the jade that has not been opened, and through the patina on the outside of the jade and related details, we can know the jade inside.

In terms of its own quality, just from this point of view, Chu Fengping has completely surpassed Yang Jiuzhou by more than one margin.

"Little brother Chu Fengping, after listening to you teach me such a lesson today, I realized in my heart that it turns out that jade is not only the appreciation of jade itself, but the appreciation of raw stones is also a very important subject."
Chapter completed!