As the auction market has risen year by year, collector-grade purple clay pots are now hard to find.
As a miscellaneous collection, some of the well-made purple clay pots are made by famous artists. The "mud" is gold equivalent and even the "mud" is more expensive than gold. In the market, there are speculations about the double scarcity of purple sand mines and craft masters' production ability, and combined with the dual functions of drinking tea and investment appreciation, purple sand pots have become the most popular collection and gift-giving equipment. Insiders reminded that there are many pitfalls in the collection of purple sand. If you don't want to open your eyes, you must know the materials and craftsmanship, and you must have a high aesthetic level.
"One tael of purple sand and one tael of gold"
There is a saying in the shop that the price of the purple sand pot is due to the scarcity of the "zisha mine".
Zisha teapot, made of Zisha mud. The origin of the purple clay teapot is in Yixing, Jiangsu, also known as Yixing purple clay teapot. Due to the unique nature of the purple clay material, the purple clay pot is "breathable and impermeable", making tea does not capture the aroma of the tea nor the smell of the cooked soup, "the color and fragrance are all contained"; because the wall of the pot can absorb the tea gas, after a long time, the empty pot is filled with boiling water There is also a fragrance of tea; the more the tea is stored in midsummer, the longer it is, the boiling water in the cold winter will not burst and crack due to the sudden change in temperature; and the heat transfer of the sand is slow, and it is not hot to handle.
At the end of June 2010, Yixing City, Jiangsu Province announced to the public that it would lift the "ban on mining" of purple sand mines issued in 2005 and resume mining of purple sand mines. The purple clay mud is covered with a magical veil, and the rumors that the purple clay mine is about to be exhausted have pushed the price of purple clay pots higher and higher.
"Things are rare and expensive, but purple clay is not scarce, and purple clay pots are not expensive because of purple sand." Ceramic experts pointed out that purple clay is a silty mud structure. Because it contains more iron, it is also called "iron-containing clay". "Quality siltstone", the purple sand mud contains quartz particles, and the sand in the mud is called "bone strength" by experts. Zisha mud has good process performance due to its unique natural characteristics. The well-known source of purple sand mud is Huanglong Mountain, Dingshu Town, Yixing, Jiangsu Province, which belongs to the Tianmu Mountain. Its neighboring areas, such as Changxing, Zhejiang, also produce purple sand mud in the same vein, which is hard to distinguish from Yixing purple sand. There are purple sand mud mines in Guiyang, Guizhou, Kazuo, Henan, Baofeng, Henan, and Dapu, Guangdong. They have a long history of mining, but they have not formed an industrial scale and are not as famous as Yixing. It cannot be said that Yixing is the only producing area of purple sand mud. "Yixing closed the mine, the original purple sand mine may not be extinct."
People in the circle understand that craft pots with investment value don’t consume a lot of purple clay. A pot generally doesn’t use half a catty of clay. Many potters can’t use a hundred catties of clay a year, and some people can’t even make it a month. For pots, their annual output is not as good as the manufacturer's one-day output. Many of the so-called purple clay pots currently flooding the city are "chemical pots" made of "pseudo purple clay". The pot maker randomly added chemical raw materials to the clay. Although the color of the pot is good, the tea has a peculiar smell.
Experts enumerate the methods to identify the authenticity of purple sand: look at its color: the color of pure purple sand should have the charm of jade. After long-term soaking, good purple sand can show a deep, simple and shiny temperament, rather than purple sand or purple sand. Pure pots can’t bring out this kind of temperament; listen to the sound: pour boiling water into the purple sand pot, the purple sand pot will make a hoarse, dumb and heavy sound. The hoarse sound indicates that the material has good air permeability and does not crystallize inside, which can maintain the fragrance of tea. , Not easy to change the taste. If there is a metallic sound or a crisp sound of porcelain after water injection, it is not purple sand or impure purple sand; smell: the teapot mixed with chemical raw materials has a peculiar smell, such as using Tieguanyin into the pot, after one hour of soaking, the tea will change color or have Peculiar smell.
High imitation pots are unstoppable
Zisha teapot is not only expensive on the material and craftsmanship of Zisha, its investment value is also derived from the cultural and artistic value created by famous artists.
Master pots have their own unique styles and innovative shapes. The accumulation and quality of the masters will be reflected in "work, shape, clay and style".
Mud: It is said that some master pots have special mud processing technology, and the pots made have a unique texture that is not bright in color and not greasy. Shape: The shape of the pot reflects the creator's cultural heritage and aesthetic conception. The mouth, handle, cover, body, and flow of the pot are in a coordinated proportion, and you will never get tired of it. Gong: refers to both the artist’s production skills and the practical functions of the pot. Purple clay teapots must be practical, and not only focus on the beauty of the shape, but ignore the function. Some people who make pots don't understand tea, and their works can't express the unique charm of tea making in purple clay pots. They don't seem to be useful. No matter how beautiful the shape of the pot is, it is not a good pot. Style: The style of the purple clay pot includes the stamp of the pot maker and the poetry, calligraphy and painting engraved on the pot.
One of the chaos in the purple sand market is a large number of moulded purple sand pots mixed with handmade pots.
According to industry insiders, whether the purple clay pot is a handmade pot has a great influence on its value. Hand-made pots, after repeatedly tapping the mud pieces to form, the outer wall is cut, scraped, and trimmed. Each process is quite laborious. But the mold making saves these efforts; after the hand-made pot is fired, the surface is coarse and prominent, and the surface of the pot presents a warm texture and bright luster. Due to the loose mineral structure and the accumulation of sand particles, the inner wall of the pot reflects the natural function of internal penetration and external absorption, showing the unique properties of purple sand. After the mold pot is fired, the surface loses its texture, and the wall absorption rate drops to 60%. The unique properties of purple sand are scarce. After a long time, it often appears dull and rigid. The expert introduced a trick to identify mold pots. Careful observation reveals that a pure mold pot has a small mark in the middle of the pot from the spout to the handle.
In recent years, with the advancement of simulation technology, more and more imitation pots have appeared in the market. The styles of famous pots can be easily imitated by computer technology. Many high imitators are skilled craftsmen themselves, and the craftsmanship level is close to the level of predecessor classic pots or pots of the same generation. They only suffer from their lack of fame and the pot price is too low. Imitation pots are enough to be true.
OEM pots are even more difficult for collectors to guard against. Many high imitation pots on the market are marked by themselves as high imitation goods, and there is no shortage of sought after. Even if you want to use fake pots with high imitations, you can use the author's seal, signature certificate, or the secret symbols made by the potter on the pot to identify the authenticity, but the OEM pot made by the gunner is difficult to distinguish. Gunner's OEM pot is the person who makes the pot himself fakes his own work. According to the current market for purple clay pots, master pots easily exceed 100,000 yuan, and demand exceeds supply. Some companies even buy master pots for tens of millions of dollars.
According to the traditional hand-made method, a purple clay potter can only make 50 pots a year. In order to maintain the quality of the work, many purple clay potters often only make 3 to 5 pots a year. However, some masters are also unavoidable because they are driven by heavy profits. The gunner's OEM pots are mostly sold directly in the master's studio or in the hands of the master. They are made by the gunner himself, and are accompanied by the master's real seal and certificate.
Zisha cultural scholar and collector Song Shuangcai put forward higher requirements for collecting pots. He believes that most of the purple clay pots on the market are practical products, focusing on functionality. But what is worth collecting should be works of art, and the requirements of "craftsmen" cannot be used to evaluate artistic purple clay pots. The vitality, the spirit of energy, the flatness of the joint surface, and the corresponding relationship of the various parts of the pot are the four "looks" that Song Shuangcai most often considers when facing each pot.
"A pot, regardless of its radius, can form a sense of expansion in the vision, which means that the pot is breathing and is alive. If there is no elasticity, then it is a dead pot." Song Shuangcai values the vitality of the pot most. "A good pot is emotionally healthy, upward, and has a graceful posture. Some pots are beautiful, like a lady. Some pots are bad, like a handmaid. To look at a pot, in addition to checking vitality, you also need to look at your spirit."
In addition, the flatness of the joint surface of the pot cover and the pot body is also very important. From wet mud modification, mud drying, and firing, only skilled craftsmen can accurately grasp the mud properties, estimate the deformation of the mud in the production, and make the fired The two parts are combined smoothly.
After completing the three-level inspection, Song Shuangcai still needs to look at the correspondence between the various parts of a pot. Song said: "The three tough lines of the lid, the body, and the bottom of the pot correspond to the large curved surface that encloses the pot, forming a harmonious beauty. The correspondence between everything and everything is also reflected in a pot in the palm."