Riding the wind of rebirth

Chapter 1017 Clam Light

Zhou Zhi was very angry, but there was nothing he could do about Xu Anxin. In this respect, it was a case of a scholar meeting a soldier, and it was hard to explain why.

It was still early when we arrived at the airport, but because the government had arranged for us to wait in the VIP room, where coffee and tea were served, there were also a lot of books, and the latest multimedia equipment, so we would not feel bored.

There are also a lot of furnishings in the VIP hall. There are Shu brocade, embroidery, and porcelain in the glass window.

Zhou Zhi doesn't understand Shu brocade and embroidery, but several pieces of porcelain are five or six porcelain.

Zhou Zhi really couldn't stand it anymore, so he raised his hand and called the manager: "Among the furnishings here, some of the pieces are not real porcelain from the third generation of the Qing Dynasty, but high-quality imitation porcelain that was used to exchange foreign exchange after the founding of the People's Republic of China. Do you know about this?"

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

Xu Anxin gave Zhou Zhi a blank look, which meant that you were really flustered, and coughed lightly: "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?"

This sentence was decent at the beginning, but later it turned into a question sentence, which made the manager a little bit drummed, don't be a kid from a wealthy family talking nonsense.

However, the person is still very polite: "I will definitely report the opinion of this Mr....

"There's no need to be so troublesome, right? I'll just mention it, and it's up to you whether you change it or not." Zhou Zhi also regretted that he shouldn't talk too much.

However, this remark made the manager misunderstand even more, and he nodded earnestly at Youngest Li and Cousin An Xin: "I will contact the superior now."

When the manager left, Cousin An Xin gave Zhou Zhi a kick: "I know it's causing trouble."

"I... I didn't expect it to be like this, and it's not what she understood..." Zhou Zhi couldn't laugh or cry: "It's because of the face of your two great Buddhas that people attach so much importance to it, right?"

"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 easy to resist lead. It is called 'clam light' in the industry." Zhou Zhi smiled: "For us, this is common sense that we must know."

"Of course, the clam light cannot be used as the only criterion for identifying ancient porcelain. However, the clam light deliberately created to make it old is difficult for outsiders to distinguish. For us, it is just a false one to cover up."

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

"Okay." Zhou Zhi brought the two of them to the window: "Porcelain, to put it bluntly, is to cover a thin layer of colorless or colored glass on the surface of the clay embryo to make it bright, beautiful, and high-strength. No water seepage, easy to clean and many other benefits.”

"With the progress and improvement of craftsmanship, gradually, the colors on the porcelain become more and more abundant, and the patterns become more and more exquisite, especially the porcelain used in the courts of the past dynasties has always occupied the pinnacle of ancient handicrafts and developed many categories. "

"Among these porcelains, especially various overglaze porcelains, most of the pigments contain lead. Leaded overglaze porcelains and low-temperature lead glazed porcelains are corroded by external physical and chemical substances and slow chemical changes inside themselves. Affected, a colored film will be produced on the surface of the porcelain. As the "porcelain age" continues to increase, this film will gradually increase and thicken. When it reaches a certain thickness, a kind of film will be produced. The optical physical scattering reaction is similar to the flashing 'rainbow light' inside the clam shell, so people call it 'clam light'."

"Now you often eat seafood, you should be familiar with the reflected light from the clam's inner shell, right?" Zhou Zhi said to An Xin's cousin.

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

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

"If the oxide layer is thickened to a certain extent, the phenomenon of 'silver returning' will also appear. This is especially obvious in the blue and white of the Ming Dynasty, but it is not the content of our research today, so let's not talk about it."

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

"For example, the blue color, the clam light appeared relatively quickly, and the red, yellow, and green 'big bright color' in the Wanli period of the Ming Dynasty was relatively long. Not only can you see the dazzling clam light on the glaze, but sometimes Even the ivory-white ground glaze has this blinding flash of light."

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

"There were ceramic experts and connoisseurs who wrote a monograph on this, and believed that the formation of clam light must be at least 300 years old, and thus asserted that it is possible for this kind of clam to appear on porcelain colored glazes aged above the Kangxi and Yongzheng dynasties of the Qing Dynasty. 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 found that among the porcelains of the Qing Dynasty, especially the edges and accumulations of lead glaze colors such as yellow, green, and blue, you can often see this kind of 'clam' that is difficult to see when viewed from the front, but clearly seen from the side. At present, it seems that the closest to the present will produce "clam light" porcelain, even including the pastel porcelain produced by the Art Porcelain Factory in the era of planned economy, such as "Mao porcelain" and "Jianguo porcelain". There are also discoveries."

"Wang Po sells melons, sells melons, sells and boasts." This spring, a set of 260 pieces of dotted water peach blossom wool porcelain was exhibited at Guardian Auction House in Hong Kong Island. Afterwards, Lin Wanqiu presided over the auction and was sold by Li Jianchen, a famous antique dealer in Xindao, for [-] million Hong Kong dollars. The winning of the competition caused a sensation in the collection circle.

However, when many people who tried to pick up the leaks went 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 ones picked up a few pieces of fish that slipped through the net around Jingde.

These few pieces of fish that escaped the net were passed on from person to person in a blink of an eye, and after a few rounds, they climbed to the sky-high price of modern porcelain, even higher than that of porcelain from the third dynasty of Qing Dynasty.

Cousin An Xin and Lin Wanqiu are two sisters-in-law, and she also knows where the set of porcelain that Li Jianchen got came from, and it is clearly one of Zhou Zhi and Lin Wanqiu's hunger marketing methods.

Zhou Zhi smiled, and didn't bother to pay attention to Cousin An Xin's provocation: "Until liberation, antique shops believed that clam light could not be artificially imitated, so clam light was an important criterion for authenticating ancient ceramics."

"However, the height of the Tao is one foot, and the height of the devil is one foot. Fanjiajing in Jingde, which specializes in making antique porcelain, has several counterfeiting workshops, and some antique porcelain exported in the 60s is "electro-optical water method" and "vacuum coating method". , the first time artificially produced clam light, and later improved the process formula, so that five-color, pastel and other overglaze porcelain can have the phenomenon of "clam light" as soon as it comes out of the kiln, making the high-imitation overglaze color Qing Dynasty The official kiln porcelain has almost reached the level of false ones."

(End of this chapter)