Zhou Zhi was very angry, but there was nothing he could do to deal with Xu Anxin. In this regard, it was just like a scholar meeting a soldier, and he couldn't explain why.

It was indeed early when we arrived at the airport, but because the government office had arranged for us to wait in a VIP room, where coffee and tea were served, there were many books, and the latest multimedia equipment, so we wouldn't feel bored.

There are a lot of furnishings in the VIP room. There are Sichuan brocades, embroidery, and porcelain in the glass showcases. I wonder if they were obtained from the Gongmei Mall.

Zhou Zhi doesn’t know much about Shu brocade and embroidery, but several pieces of porcelain are made of fifth or sixth grade porcelain.

Zhou Zhi couldn't stand it anymore, so he raised his hand and called the manager: "Some of the furnishings you have here are not real porcelain from the third and third dynasties of the Qing Dynasty, but high-imitation porcelain used to exchange for foreign exchange after the founding of the People's Republic of China. Do you know this?"

The manager looked at a young man in his twenties and said wildly: "Uh, Mr. Li, Ms. Xu, who is this?"

Xu Anxin rolled her eyes at Zhou Zhi, which meant that you were really idle, and coughed slightly: "This is my cousin, a disciple of Mr. Qi from the Palace Museum and Mr. Wang from the National Museum... He has research on ancient porcelain, right?"

The words started out decently, but then they turned into questions, which made the manager a little nervous. Don't be just talking nonsense like a kid from a wealthy family.

However, the person was still very polite: "I will definitely report this...sir's opinion to my superiors. If it is convenient, please leave your contact information and I will inform you of the result at that time."

"You don't have to go to such trouble, right? I'll just mention it. It's up to you whether to change it or not." Zhou Zhi also regretted not talking too much.

However, these words made the manager even more misunderstood. He nodded seriously to Li Laosan and cousin An Xin: "I will contact my superiors now."

When the manager left, cousin An An gave Zhou Zhi a kick: "I know he's going to cause trouble."

"I...I didn't expect it to be like this, and it wasn't what she understood..." Zhou Zhi couldn't laugh or cry: "Is it because of the face of you two giant Buddhas that people take it so seriously?"

"Are you sure those pieces of porcelain are imitations?" Li Laosan asked.

"These are all overglaze colors. One of the characteristics of overglaze colors is that they are good at repelling lead. They are called 'clam light' in the industry." Zhou Zhi smiled and said, "For us, this is common sense that we must know."

"Of course, the clam glow cannot be used as the only criterion for identifying ancient porcelain. However, the clam glow, which is deliberately created for the purpose of making it look old, is difficult for outsiders to distinguish. For us, it is just a fake that hides the obvious."

"Really?" Cousin An An became interested and pulled Zhou Zhi: "Tell us about it and see the difference."

"Okay." Zhou Zhi led the two of them to the display window: "Porcelain, to put it bluntly, is to cover the surface of the clay embryo with a thin layer of colorless or colored glass to make it bright, beautiful, and strong.

It doesn’t leak water, is easy to clean, and has many other benefits.”

“With the advancement and improvement of craftsmanship, gradually, the colors on porcelain have become richer and richer, and the patterns have become more and more exquisite. Especially the porcelain used in the palaces of past dynasties has always occupied the pinnacle of ancient handicrafts and developed many categories.

"

"Among these porcelains, especially various overglaze colored porcelains, most of the pigments contain lead. Lead-containing overglaze colored porcelain and low-temperature lead-glazed porcelain are corroded by external physical and chemical substances as well as slow chemical changes within themselves.

The impact will produce a colored film on the surface of the porcelain. As the 'porcelain age' continues to increase, this film will slowly increase and thicken. When it reaches a certain thickness, a colored film will appear.

The optical physical scattering reaction is similar to the flashing 'rainbow light' inside a clam shell, so people call it 'clam light'."

"Now that you eat seafood often, you should be familiar with the reflected light from the inner shell of clams, right?" Zhou Zhi said to cousin An An.

"It's true." Xu Anxin looked at the porcelain in the window seriously, and changed several angles: "Why didn't I notice these things before?! Look, Jack, there are really colored reflections!"

"This phenomenon of colored light reflection caused by lead oxidation is especially obvious when looking sideways at the light, and it often takes hundreds of years."

"If the oxide layer thickens to a certain extent, there will be a 'silver return' phenomenon. This is especially obvious in the blue and white of the Ming Dynasty, but it is not the content of our research today, so we won't talk about it for now."

"According to different types of porcelain and different ages, the performance of clam light is also different."

"For example, blue color and clam light appeared relatively quickly, while the 'Daming Color' of red, yellow and green in the Wanli period of the Ming Dynasty was relatively older. Not only can you see the dazzling clam light on the glaze, but sometimes

Even the tooth-white base glaze has this dazzling halo flashing through it.”

"This kind of white background is called 'pearl', which means that its halo appears like a pearl. Together with the glaze clam's light, it is collectively called 'clam pearl'."

"There were ceramic experts and connoisseurs who wrote a monograph on this, believing that the formation of clam light must be at least three hundred years ago, and thus concluded that only the colored glazes of porcelain from the Kangxi and Yongzheng dynasties of the Qing Dynasty could have this kind of appearance.

Clam light.”

"Therefore, clam light has become a standard feature of ancient porcelain for a period of time, and it has also become an important basis for identifying ancient porcelain."

"Later, after research, we discovered that in fact, in the porcelain of the Qing Dynasty, especially in the edges and accumulation parts of lead glaze colors such as yellow, green, and blue, we can often see this kind of 'clam' that is difficult to see when looking from the front, but is clear when looking from the side.

At present, it seems that the nearest porcelain that can produce "clam light" even includes pastel porcelain produced by art porcelain factories in the planned economy era, such as "Mao Porcelain" and "Jianguo Porcelain".

There are also discoveries.”

"Wang Po sells melons and boasts of herself." This spring, an eighteen-piece set of water-dotted peach blossom porcelain was exhibited at the Guardian Auction House on Hong Kong Island. Later, Lin Wanqiu hosted the auction, and was sold to Li Jianchen, a famous antique dealer in New Island, for two hundred and sixty-six dollars.

It was won for 100,000 Hong Kong dollars, causing a sensation in the collecting world.

However, when many people trying to pick up the leaks rushed to several major porcelain factories in Jiangxi, they found that these precious porcelains had already been taken away by caring people. Only a few lucky people picked up a few pieces that had slipped through the net around Jingde.

These few pieces that slipped through the net were passed from person to person in the blink of an eye. After a few rounds, they reached the sky-high price of modern porcelain, even higher than the porcelain of the third generation of Qing Dynasty.

Cousin An An and Lin Wanqiu were sisters-in-law. She also knew where the set of porcelain that Li Jianchen got came from. It was clearly one of Zhou Zhi and Lin Wanqiu's hunger marketing tactics.

Zhou Zhi smiled and was too lazy to pay attention to Cousin An An's provocation: "Until before liberation, antique shops believed that clam rays could not be artificially imitated, so they regarded clam rays as an important criterion for identifying ancient ceramics."

"However, as high as the road is, so is the devil. Fanjiajing in Jingde specializes in making antique porcelain. There are several counterfeiting workshops that use the 'electro-optical water method' and 'vacuum coating' on some of the antique porcelain exported in the 1950s and 1960s."

In France, clam light was artificially produced for the first time. Later, the process formula was improved, so that multicolored, pastel and other overglaze colored porcelain can have the 'clam light' phenomenon as soon as it comes out of the kiln, making high imitation overglaze colored porcelain

The official kiln porcelain of the Qing Dynasty almost reached the level of being fake and real."
Chapter completed!