Jianbao life

Chapter 562 Appreciation Activities ([-])

The value of these two pieces of Xuande blue and white porcelain owned by Mr. Niu should be around tens of millions. If you buy these two heavy items for 500 million, it must be worth the money. Of course, it is very likely that the original owner did not know the specific value of the item, so it was cheaper for Mr. Niu.

However, the reputation of Xuande blue and white porcelain is not small, wouldn't the original owner go for an appraisal before mortgaging it?Or is he referring to the price a few years ago?
If these two items are genuine, then there is no need to doubt everything, but if there are problems with these two items, then you have to think more about it.

"Xiao Chu, what do you think?" Guan Guokang turned his head and asked Chu Chen next to him.

"I don't think these two things are true!" Chu Chen said.

"Mr. Chu, since you think these two things are not true, there must be a reason!" Mr. Niu stared at Chu Chen closely and said, this is not tens of thousands or hundreds of thousands, but tens of millions , even if his net worth is several hundred million, he will feel distressed for a while if he loses tens of millions, so no matter what, he has to ask clearly.

In fact, when he just walked over, Chu Chen had already identified with supernatural powers, and there was not even a little spiritual power in the two pieces of porcelain, so these two things must be fakes made in modern times.

However, the result given by the ability must not be used as a reference, so he took the time when everyone was talking, carefully observed the two utensils, and luckily learned the authenticity of the utensils in advance. Otherwise, it is really not so easy to find several places that are different from the real product.

"The reason why I say this must be based on a basis."

Chu Chen first picked up the large plate and said: "Let's talk about this blue and white plate first, the real Xuande official kiln porcelain. With a magnifying glass, you can see that the bubbles in the shaft are divided into large, medium and small bubble groups. The distance between them is relatively loose, but the bubbles in the glaze of this large plate are dense and neat, which is not consistent with the characteristics of the real product.”

Hearing this, Wang Xiangong said: "Well, Xiao Chu, I just looked at it with a magnifying glass, why didn't I see the phenomenon you mentioned?"

The others also nodded repeatedly, expressing the same.

Chu Chen smiled slightly and said: "The reason is very simple. You are using the magnifying glass prepared here, which can only magnify twenty times at most, and this phenomenon can only be seen with a thirty times magnifying glass. If you don't believe me, use my magnifying glass to see it." You'll know right away."

As he spoke, he put his [-]x magnifying glass on the table.

After hearing Chu Chen's explanation, everyone was surprised and took turns to observe the plate with Chu Chen's magnifying glass, and found that the air bubbles in the glaze were exactly as Chu Chen said.

At this time, Mr. Niu was feeling very uncomfortable. Judging from the current results, his blue and white plate might indeed be a fake, but he felt unwilling, so he said with a little confidence: "This, will it be a counterfeit?" It's an isolated phenomenon!"

After all, it is a valuable item worth several million. Chu Chen was not surprised by Mr. Niu's performance. He walked to his place, greeted the treasure holder, and put a small blue and white bowl He took it and said:

"Mr. Niu, I'm sorry, this phenomenon is common in Xuande blue and white. If you don't believe it, you can just look at this Xuande bowl."

Mr. Niu smiled wryly. He also knew that since Chu Chen said that, he must be sure, so he waved his hand and said, "Mr. Chu, I believe what you said!"

And the owner of this small bowl immediately ran over excitedly, and asked excitedly: "Mr. Chu, what do you mean, this bowl of mine is genuine?"

"Yes, congratulations, this bowl is indeed a genuine product." Chu Chen smiled and nodded.

When the man heard the exciting news, he almost jumped up. Finally, he calmed down a bit and asked, "Then how much is my bowl worth?"

Chu Chen pondered for a while, and then said: "I estimate it to be around 350 million to 400 million. If it goes to the auction, it may be even higher."

"This... so valuable?!" When the man heard the price that surprised him, his eyes almost popped out, and the others looked at him enviously.

"That's true!" Chu Chen nodded affirmatively, and said, "However, sir, I would like to trouble you, can you use this bowl as a reference for us, don't worry, it will be ready in a while."

The man was also more generous, and he nodded in agreement without thinking too much.

At this time, Guan Guokang said: "Xiao Chu, is there nothing different about this plate from the real one except for the air bubbles?"

"That's right, could it be that the forger has already been able to imitate Su Bo's mud?" Yu Renpeng also asked immediately.

"It's not that easy!" Chu Chen smiled and shook his head: "Every teacher should also know that the "rust spots" formed by Subo mud blue are formed by the accumulation of a large number of iron ions in the thick blue material in the decoration and secondary oxidation. Yes, it has its special distribution law. The imitation product has added more iron elements in the chemical green material, and there will be "rust spots" after firing, and there will also be "tin light"."

"But the imitation is imitation after all, so the distribution of "rust spots" made in this way will definitely not be so regular. If it is too much, the density and concentration of "rust spots" will greatly exceed the iron content in the ingredients of Sumaliqing. For example, the "rust spots" on this plate are denser than the real one, but the counterfeiters are also more skilled, and this phenomenon can only be seen through careful observation."

"In addition to the "rust spots", because of the relatively high proportion of Subo mud green, if the kiln temperature is normal during firing, it will not spread to the glaze surface, but will smear at the bottom of the glaze juice. This makes the glaze On the surface, you will find that all the green material decorations have a concave phenomenon, but the very light part of the green material is not obvious. But it is not obvious on this plate, which is also different from the real one..."

Chu Chen talked eloquently, and the others immediately wrote down what Chu Chen said verbatim. Their experience might have saved them from losses.

"If only I knew this before!" Mr. Niu sighed secretly.

Yu Renpeng pointed to another plum vase and said, "Xiao Chu, what about this plum vase? I have seen it just now. Whether it is the characteristics of air bubbles in the glaze, or the "rust spots" and sunken phenomenon you mentioned just now, But they are all exactly the same as the real thing!"

"This is exactly what I admire about the faker, but what is fake can't be true. It's not so easy to imitate this performance of Su Boniqing."

Chu Chen said: "Let's talk about "rust spots". If we observe carefully, we can also find some differences from the real product, but because the difference is relatively small, I won't say much about it. What I want to talk about is Su The beaded polycondensation phenomenon unique to Boniqing."

"This kind of beaded polycondensation phenomenon of pigments not only appears when the thick green material is used to smear the figure's clothing and other parts in large pieces, but sometimes it also appears when the thick material is used to draw fine lines such as fretwork. Obviously, the counterfeiters also discovered it. This phenomenon has been deliberately imitated, but the imitation is very unnatural."

Speaking of this, Chu Chen picked up the genuine one and said, "The beaded polycondensation phenomenon is caused by the coarse particles being insoluble in the glaze, leaving behind the original metal oxide. Look at this bowl, where the beads are They are distributed along the direction of the brush in a dot-like manner. This is consistent with the characteristic that the small particles that are not ground finely are carried by the craftsman's brush and leave traces of distribution along the direction of the brush."

Speaking of this, Chu Chen picked up the blue and white plate again: "But on this blue and white plate, it's different. Have you noticed these places, they are distributed in the shape of stems? Intersect or even perpendicular to the direction of the pen."

"This is because our current pigments are very fine, with uniform particle distribution, and can be dissolved in the glaze at high temperature, and these dark colors are iron oxides formed by iron ions absorbing oxygen during the original process, so they can not follow the direction of the brush." Directional distribution, that is why there are stem-like veins that cross or even vertically distribute with the direction of brushwork."

"In addition, I set up a kiln factory some time ago, so I also studied the information in this area. I think the reason for the appearance of stem-like veins may have something to do with the gas kiln we are using now."

Chu Chen said: "We know that only when the temperature is sufficient and the time is sufficient can the full oxidation of the ferric oxide in the green material be ensured, and the glaze surface be melted more completely. But our current air kiln only takes ten hours. , although the time has been shortened, there will definitely be traces of haste in the process of melting the green material and the glaze, and this vein-like performance should be the trace caused by this.”

At this point, Chu Chen picked up the plum vase: "I think the blue and white plate just now should be a test product of a counterfeiter, so there will be stem-like manifestations in some places, and this plum vase The bottle didn't behave like that, so I think the counterfeiter used a co-solvent."

"But in this way, there is another problem. The use of a co-solvent will make the firing time insufficient. Although the counterfeiter has adopted remedial measures, it still makes the blue and white hair color appear unclear. If you separate it It may not be easy to see, but it is very obvious when compared with the real one.”

After saying that, Chu Chen put the plum vase next to the real one. After such a comparison, as long as there is no problem with the eyes, you can find the difference between the two.

After more than a minute, I don't know who applauded first, and then everyone else applauded for Chu Chen...

(End of this chapter)