Chu Fengping seemed to have guessed that Yang Jiuzhou would make such an answer at this time, so he shook his head directly, and then rotated the original stone clockwise forward again, and with the illumination of the light, a more dazzling purple color appeared in everyone's eyes.

"In the process of judging the original stone, such a purple light is called light and shadow, once there is a light and shadow that is not white in the original stone, then it means that the jade treatment inside should have mutated, that is, the variant that often appears in the process of jade appreciation. ”

Listening to Chu Fengping explaining the reason to himself at this time, Yang Jiuzhou himself was very serious, nodding his head lightly while listening, and at the same time, his head was also wrinkled tightly, obviously trying to digest the relevant knowledge that Chu Fengping told him at this time.

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

In the process of being mined, the rough stone always has a lot of edges and corners, but this time the foot that Chu Fengping kneaded, in the whole kneading process, actually began to slowly show a black texture.

Generally, when the outer pulp of jade is rubbed out by the back hand, it will show a pale yellow powder.

This is the so-called pulp powder outside the jade, the process of jade formation and related conditions are very cocoa, so the size and quantity of the distribution range of the pulp itself, and even the pulp, after the overall Baoyu, may determine the overall quality of the jade.

But this kind of black texture of the bag powder is the first time to see Yang Jiuzhou, a little strange, and quickly stretched out his hand and rubbed it against the other edge.

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

"Little Brother Chu Fengping, can you introduce it to me, such as this way of rubbing the periphery of the rough stone, if this situation occurs, it proves that the rough stone in it is already a treasure?"

is completely different from his previous attitude, Yang Jiuzhou previously thought that he should already have a certain identity and status in jade appreciation, at least in terms of jade introduction, he has never served anyone.

But this time, Chu Fengping's absolute strength suppression had already made Yang Jiuzhou's heart admire no more.

I didn't expect that just by looking at the appearance of the rough stone that has not been completely excavated, you can easily see whether the quality of the jade itself is good or bad.

If you can learn such a skill, then it should be completely reasonable to introduce this aspect of jade to yourself as a brown eater in the future.

How could Chu Fengping not feel that the current Yang Jiuzhou had completely turned himself into a great god, and while feeling a little proud in his heart, he was also very willing to do his best to tell Yang Jiuzhou some relevant knowledge at this time.

"In fact, the formation reason and quality of the pulp on the outside of the rough stone are completely the same, and the main reason why different colors will appear in the process of kneading 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 pulp around the rough stone, and then put it in his hand and kept rubbing it. As the kneading speed increases, there is more and more black powder, and the black color becomes more and more intense the inside.

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

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

"Does this situation prove that the black powder is actually the trace element that should be ingested into the jade during the formation process, and the color of the trace element is black, so the jade inside should be black jade?"

Although it is said that what Yang Jiuzhou said when answering Chu Fengping's question was not true, and even what he said at this time completely by relying on his own blind dreams, it cannot be said that it was completely wrong.

At least Yang Jiuzhou said that the jade in this should be black jade, but in fact, he was already right.

"As for the appreciation of the appearance of the rough stone, in fact, it is also a very advanced science, just through the characteristics of the periphery of the rough stone, you can judge the quality of the jade itself by the characteristics of the periphery, which is actually much deeper than the appreciation of the jade itself. ”

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

At this time, Wang Yunshi, who was standing by and watching all this, already showed an extremely surprised expression on his face, he couldn't figure it out anyway, he didn't expect that Chu Fengping not only had a unique feature in the appreciation of antiques, but also in terms of jade research, he was even more powerful than Yang Jiuzhou in the Yang family of the jade family.

At this time, Chu Fengping is like a huge treasure, and at the same time, he is also like an incomparably mysterious person, about how many uniqueness he still has in other aspects, until now, Wang Yunshi's heart has never figured out how many secrets he still has not been excavated.

As the communication 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 the study of some relatively subtle situations of jade, has already reached the peak.

But now it seems that the gap between himself and Chu Fengping is really not a little bit now, just through the research of the jade that has not yet been opened, through the pulp on the outside of the jade and the relevant details, you can know the quality of the jade inside itself, just from this point of view, Chu Fengping has completely defeated Yang Jiuzhou more than a step.

"Little brother Chu Fengping, I heard you teach me such a lesson today, and I knew in my heart that jade is not only the appreciation of jade itself, but also the appreciation of raw stones. ”