Live appraising treasures, I became a national treasure expert?

Chapter 172
"This one was imitated later!"

Li Dingan flipped his hand over and put the flower pot upside down on the long table, "If nothing else, this thing also incorporates the glazing technique of Jian Kiln... Well, it feels like something that came out of Jian Kiln..."

Hearing "imitation", Yu Zhengze was still sneering, and when he heard "build a kiln", he was stunned.

The Jun kiln is glazed with copper, while the Jian kiln is glazed with iron or aluminum... The former is mainly dark purple glaze, while the latter is black glaze and green glaze... How did he get it together?

Yu Zhengze deliberately lowered his head and took a look: That's right, the purple is red, and there is a hint of blue in the red, a typical color on malachite...

Surprised, Li Ding'an picked up the second one, and looked at it very carefully, but also slowly: "It is indeed blue and white glaze, and it is also very exquisite, but looking at it..."

After a pause, Li Dingan clicked his tongue, turned over the vase, and looked at the base: "It's also an imitation, and the imitation is indeed from a new official kiln in the Southern Song Dynasty...and it comes from the same batch of kilns as the flower pots!"

Yu Zhengze was stunned again: "It's better to build a kiln."

"Correct!"

No... are you colorblind?
Subconsciously, Yu Zhengze raised the blue and white plate to his eyes, wishing he could put his eyes on his feet.

There is a gap on it, about the size of a grain of rice, and it is very new. It can be seen that it was left after the police took samples and tested it.

So from here you can see the quality of the fetus: a little black, but still almost pure white.

He picked up the gallbladder again, and there were gaps on it... yes, they were all almost pure white tires, which was not the color that Nanping's soil could burn out at all.

After studying ancient porcelain for more than ten years, can you still admit it?

He just wanted to laugh, but Zhang Hanguang just glanced at him, and Yu Zhengze could only hold back, with an extremely weird expression on his face, as if he couldn't get out of the toilet:
"Haha... According to what you mean, you don't need to look at the remaining two pieces. They must be imitations, and they are probably from Jian Kiln."

"President Yu, don't worry!"

Li Ding'an smiled: "I know you want to read the joke, but can you wait for me to finish it first?"

Yu Zhengzheng laughed happily: "Don't... I really don't want to see your jokes, I just feel that your idea... Well, it's quite novel!"

When Li Ding'an said for the first time that Yaobian porcelain was an imitation of Jun kiln, Yu Zhengze was really uncomfortable. He felt that this young man was somewhat "playing big swords in front of Guan Gong's gate".

No matter how unbearable he is, he is also an authoritative scholar who has won several ministerial awards in a row. No matter how lame his eyes are, he will not be able to recognize real porcelain and imitation porcelain.

At that time, he almost couldn't hold back and wanted to ask for advice.

After Li Ding'an said "build a kiln", Yu Zhengze understood: this is two knives, and he doesn't know how to install it hard.

It's not his conceit, but common sense: Jianyang's soil contains too much iron, so the black porcelain of Jian's kiln is world-famous.If other colors of porcelain are fired, the porcelain body will turn yellow, red or even black, so the quality is very average.

And the fetal quality of these two pieces is pure white?

So I couldn't figure it out, how did Li Ding'an get involved?

Unknowingly, Yu Zhengzheng's mentality changed, he let go of his arms, and Shi Shiran put his back behind his back.

His expression didn't change, but he didn't need any psychology to tell: Li Ding'an was right, he was just waiting to see a joke.

Zhang Hanguang couldn't stop sighing, but Dai Younian's eyes were shining brightly, moving back and forth on the faces of the two of them.

But Li Ding'an completely forgot, and looked at the remaining two items carefully.Similarly, after reading it, he would turn things over and buckle them upside down on the case so that they turned upside down.

It took a full 10 minutes before he put down the last blue and white dish.But his eyes were loose and his expression was dull, as if he was in a daze.

Yes, just in a daze...

After waiting again, seeing that he didn't come back to his senses, Yu Zhengze tapped the table again: "Is there any question?"

Li Ding'an woke up like a dream: "There is indeed something wrong: this patina... is very wrong!"

Not right is not right, what does it mean to be very wrong?
Just as he was about to ask, Li Ding'an pointed to the blue and white plate again, "This is a traditional old-fashioned method, so President Yu can tell it at a glance. But the latter three are all high-tech methods..."

Yu Zheng was taken aback for a moment, and then came back to his senses: "It means... I didn't see any of the last three things?"

Li Ding'an nodded: "You're right if you want to say that!"

It was indeed not wrong: the dragon-pattern vat was the first one, but it was smashed to pieces by myself, and the purple flower pot was the second one, which President Yu must have never seen before.

As for the remaining two pieces, they played new tricks again. The old-fashioned technology is more high-end and more realistic than the dragon pattern vat.If it wasn't for being more careful and using the system to test it, Li Ding'an would almost have thought that these two things were true.

Does it mean that this group of people's counterfeiting and antique technology is still evolving, and the progress is extremely fast?

incredible……

Correspondingly, it's not surprising that President Yu couldn't recognize him... And it wasn't just him: at the same speed as his dog was chasing after him just now, Lu Benzhi and Chen Shouyi would probably be terrified if they came.

"This, hehe...Okay, even if I didn't recognize it..."

Yu Zhengzheng laughed angrily, "According to what you said, these four kinds of different glazes, four kinds of vessel shapes, and four kinds of porcelains made of four crafts are Song porcelains imitated by the same batch of kilns built in the Yuan Dynasty? For some unknown reason, it sank into the sea and was fished up again. But the noodles are too new, so they re-pasted, right!"

"It's a bit convoluted, but it's true!"

"You can really talk!"

"I'm not kidding...President Yu, you are an authoritative scholar on ancient porcelain, and you must know better than me that building a kiln is not just for firing black porcelain..."

Yu Zhengze snorted: "Of course I know, but no matter what kind of porcelain is fired, the body of Jianyao porcelain cannot be so white."

"Okay...then when the celadon was fired in the kiln, how did the red porcelain body fade?"

"Of course, after crushing and screening, use a magnet to separate the iron element, and then add quartz sand to make it stale...but no matter how light it is, it can only be beige!"

"That's right... what about the Ding kiln, at first the iron content of the porcelain clay was also high, so what was fired was sauce glaze, and then white porcelain can be fired?"

"Dig earthen wells deeply. The deeper the well, the less iron. After the well is crushed, the soil is washed with water, separated with a magnet, and then lime is used to neutralize the staleness. Make-up soil is used for glazing...but the whiteness is only about [-]%. "

"Where's Dehua Porcelain?"

"Dehua is originally high-purity Bailing soil, and it also uses alkali such as plant ash!"

"What about the bluish-white glaze of the Yuan Dynasty? Why is the porcelain body whiter?"

"Of course it's a secondary formula, adding high-purity kaolin and lime stale, the more you add, the whiter it will be."

"That's right!"

Li Ding'an pointed to the gap on the bottom of the flowerpot, "The more you add, the whiter it will be..."

For a moment, Yu Zhengze's eyes widened: "Where can such high-purity kaolin come from Nanping?"

"There is really no high-purity kaolin, but there is bauxite in Nanping. The main ingredients of the two are the same, both are alumina... Then use two of the above methods at will, such as bauxite, quartz sand, plant ash, and then stale , even black iron ore can turn you white..."

"What are you talking about, how could there be such a craft in the Yuan Dynasty?"

"I thought it wasn't there either, but the fact is that there is!"

Li Ding'an stretched out his hand: "Director Zhang, where is the report?"

Zhang Hanguang didn't move, just sighed.

Dai Younian also sighed, and stopped observing Li Ding'an, but fell into deep thought.

On the other side of the surveillance, the policemen in the room seemed to be frozen, staring at the test report on the conference table.

The characteristics of the shape of the utensils are Song Dynasty, the date of C-14 is Yuan Dynasty, and the place of origin is unknown... But in the column of ingredients, in addition to porcelain clay, there are also bauxite, quartz sand, plant ash...

In other words, is it really one of the two methods mentioned by Li Ding'an?
So the last three words are like needles, not ordinary dazzling...

　I'm sorry, I didn't check the details during the day, and I couldn't make it up no matter how I wrote it. I had no choice but to start over.

　　It's a bit short, I squinted for a while, and then worked hard to write after getting up.

　　
　
(End of this chapter)