Chapter 1018 Clam Light
Zhou Zhi was very angry, but there was nothing he could do about 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 would not feel bored.
There are a lot of furnishings in the VIP room. There are Shu brocade, embroidery, and porcelain in the glass display window. I don’t know if they were obtained from the Gongmei Mall.
Zhou Zhi doesn’t understand 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 nonsense: "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? ?”
This sentence started out decently, but then it turned into a question, which made the manager a little nervous again. Don’t just talk 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 we will inform you of the result at that time."
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"You don't have to go to such trouble, right? I'll just mention it. It's up to you whether you want to change it or not." Zhou Zhi also regretted that he shouldn't talk too much.
However, these words made the manager misunderstand even more. He nodded seriously to Li Laosan and cousin An Xin: "I will contact my superiors now."
When the manager left, cousin An Xin said Kicked Zhou Zhi: "You know how to cause trouble."
< br>"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 pay so much attention to it?"
"Are you sure those pieces of porcelain are all 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."
< br>"Of course, clam light cannot be used as the only criterion for identifying ancient porcelain. However, the clam light deliberately created for the purpose of making it look old is difficult for outsiders to distinguish. For us, it is just a cover-up. Fake."
"Really?" Cousin An An became interested and asked Zhou Zhi: "Tell us about it and see the difference."
"Okay. He led the two of them to the display window: "Porcelain, to put it bluntly, is a thin layer of colorless or colored glass covering the surface of the clay embryo to make it bright, beautiful, strong, impervious to water, easy to clean, etc. many benefits That’s all.”
“With the advancement and improvement of craftsmanship, the colors on porcelain have gradually become richer and richer, and the patterns have become more and more exquisite. Especially the porcelain used in the palaces of the past dynasties has always occupied the top spot among ancient crafts. At the peak, many categories have been developed. ""Among these porcelains, especially various overglaze colored porcelains, most of the pigments in lead-containing overglaze colored porcelain and low-temperature lead-glazed porcelain are affected by external physics. The corrosion of chemical substances and the slow chemical changes inside the porcelain will produce a colored film on the surface of the porcelain. As the 'porcelain age' continues to increase, this film will slowly increase and increase. Thick, when it reaches a certain thickness, an optical physical scattering reaction will occur, similar to the flashing 'rainbow light' inside the 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 you notice these things before?! Look, Jack, there are really colorful reflections. ”
“This color light reflection phenomenon caused by lead oxidation, when facing light It is especially obvious when viewed from the side, and it often takes hundreds of years. "
"If the oxide layer thickens to a certain extent, there will be a 'silver return' phenomenon, which was seen in the blue and white of the Ming Dynasty. It is especially obvious here, but it is not the content of our study today, so we won’t talk about it yet.”
"According to different types of porcelain and different ages, the performance of clam light is also different."
"For example, the appearance of blue color is relatively fast, while the red color of Wanli period of Ming Dynasty is relatively older. 'Da Ming Cai' in three colors: , yellow and green , not only can you see the dazzling clam light on the colored glaze, but sometimes even on the tooth-white base glaze, there is this dazzling halo flashing."
"This kind of white background. We call it 'pearl', which means its halo appears like Pearls behave the same way, and together with colored glazed clams, they are collectively called 'clam pearls'."
"There have been ceramic experts and connoisseurs who have written monographs on this, and they believe that clams must be formed at least three times. More than a hundred years ago, and thus it is concluded that Emperor Kangxi of the Qing Dynasty, Only the colored glazes of porcelain from the Yongzheng Dynasty and above can have this kind of clam light.”
“Therefore, the clam light has become a standard feature of ancient porcelain for a period of time, and it has also become a method for identifying ancient porcelain. Important basis.”
"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 closest porcelain will produce 'clam light', even including the production of art porcelain factories in the planned economy era. Pastel porcelain, such as 'Mao Porcelain' and 'Jianguo Porcelain', has also been found. "
"Wang Po sells melons and boasts of herself." This spring, an eighteen-piece set was decorated with peach blossoms. The porcelain was exhibited at Guardian Auction House on Hong Kong Island, and was later auctioned by Lin Wanqiu. It was won by Li Jianchen, a famous antique dealer in New Island, for HKD 2.6 million, which caused a sensation in the collecting world.
However, when many people trying to pick up leaks rushed to several major porcelain factories in Jiangxi, they found that these precious porcelains had been taken away by caring people. Only a few lucky people picked up a few pieces that had slipped through the net around Jingde. fish.
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 are sisters-in-law. She also knows where the set of porcelain that Li Jianchen got came from. It is 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 the liberation, antique shops believed that clam light could not be artificially imitated, so they regarded clam light as an important criterion for identifying ancient ceramics."
"However, Dao Gao said One foot, one foot high. Fanjiajing in Jingde specializes in making antique porcelain. There are several counterfeiting workshops that use electric light to make some antique porcelain for export in the 1950s and 1960s. Water method' and 'vacuum coating method' were used to artificially create clam light for the first time. Later, the process formula was improved, so that overglaze colored porcelain such as multicolored and pastel can have the phenomenon of 'clam light' as soon as it comes out of the kiln. The high imitation of overglaze-colored Qing Dynasty official kiln porcelain almost reaches the point where it looks like the real thing.”
(End of this chapter)