Jade appraisal expert Yang Zhenhua said that Tibetan jade

“When you come to the market, you need to bring 'eyes' instead of 'ears', otherwise you will probably have to pay tuition.” On Saturday, China’s China Unicom Jinhua Branch organized “Wen Liangru Si Shizhong Gentleman” in China. Jade appreciation lecture activity. Yang Zhenhua, a member of the National Cultural Heritage Appraisal Committee and a jade appraisal expert, made a remarkable speech, even pointing his finger at the Kampo column of a big wrist-level media in the country. She said that collections should not be too confident in experts, even if some experts who are frequently exposed in the media also have falsehoods. .

Good jade must have a good job

“A lot of times, Tibetans need to carefully identify and confirm with their own eyes. If you only take your ears to Taobao, strange stories can come out of the dealer or some so-called 'expert' mouth.” There have been 34 years of jade identification. Yang Zhenhua of his work experience said that in addition to storytelling and fake experts, the “new tricks” in the jade market have emerged in an endless stream, and some counterfeiting methods also use high technology. Under such circumstances, even true experts will look away if they do not keep up with the times.

Yang Zhenhua said that the collection of jade, "see" is the most critical. Jade collection, must pick a good texture of jade, preferably seeded skin of Xinjiang Hetian jade. Although some jade is jade, but the texture is poor, the appreciation potential is not great, some jade is a new jade, but the texture is good, there is great potential for appreciation. The price of new jade is higher than that of ancient jade, and it is a common thing. New jade with poor texture has no value for collection. Jade can not just look at its white, but also whether it is moist, hardness, tightness and so on. Nowadays, there are a lot of jades on the market that look very white. In fact, they are Qinghai jade and Russian jade. The collection value cannot be compared with Xinjiang Hetian jade.

"If you can equip a laser pointer and a magnifier with at least 15 times magnification, it is best because under the strong light and the high magnification of the magnifier, there is no place for the small cymbals on the jade." Yang Zhenhua combined his years of archaeological excavation and identification practices with his own collections of experience and techniques to explain jade artifacts for hundreds of jade enthusiasts on the scene and reminded everyone to remember that “good jade must have good work” because only Good jade, people are willing to meticulously sculpt.

How to distinguish between good and bad jade

Yang Zhenhua said that from the beginning of prehistoric culture, jade has more than 8,000 years of history in China. The jade in the traditional sense refers to jade produced in the territory of China. Among them, Hetian jade in Xinjiang is the first of nephrite jade and is often synonymous with jade. Jadeite is known as jadeite. As an exotic, it appeared much later. It was introduced from Burma in the 20th century at the end of the 18th century. However, it was quickly accepted by the people because it was deeply loved by the royal family.

In recent years, the price of jade articles has doubled year after year. Faced with the hot trend, Tibetan friends must pay attention to the texture of jade when choosing jade articles. Yang Zhenhua believes that "as long as the quality of jade is good, even the new jade, the price will not be lost." At present, the material quality jade mainly comes from two places, China's Xinjiang (Hetian jade) and Myanmar (Jade). Hetian Yu is known for his moistness, jadeite is mainly green, and he pays attention to the “head”—the texture is impenetrable and the color is not correct.

In general, the mineral composition of Hetian jade is mainly tremolite, with different shades of white, blue, black and yellow. Most are monochromatic jade, and a few are variegated. Jade is translucent and has a fat-like luster. Hetian jade's economic value is based on the purity of the color and texture, such as jade, jade, luster, density, etc. are all elements of the jade grade and should not be ignored. Yang Zhenhua said that some Tibetan friends believe that the “radish pattern” in jade lines must be Hetian jade, which is not true. The “radish pattern” is a manifestation of the inconsistency of the jade structure. It is difficult to find a “radish pattern” in a really good field seed jade. This is the difference between Hetian jade and Russian jade.

Jade is known for its color. If an emerald combines red, green, purple, and white, it is often referred to as "Fukoku Shou Hi." However, there are many artificially colored emeralds in the market today, which are usually referred to as "B" cargoes and "C" cargoes. The classification of Jade "A, B, C" appeared in the late 1980s. “A” cargo refers to pure jadeite without artificial treatment, with a hardness between 7.0 and 7.2. “B” cargo refers to jadeite that has been chemically treated and has extracted impurities; “C” cargo refers to Artificially colored jadeite. Some artificially processed jadeite looks colorful and transparent. These jadeite jades are often referred to as “B+C”. The biggest difference is that this type of jadeite is broken (broken) at the touch of a jewel.

Five strokes to identify ancient jade

At the free appraisal site, one of the most heard words was “How much is this item worth”. Yang Zhenhua believes that the value of jade is composed of three parts: jade quality value, process value, and historical value. After the Ming and Qing dynasties, the value of jade was 50%, the craft value was 30%, and the historical value was 20%. In other words, a modern jade carving, if the texture is good, is also worth collecting. At the same time, she reminded Tibetan friends that, given that the price of new jade is very expensive in recent years and the use of high-tech means, we must pay attention to the purchase of Tibetan jade, and we must carefully observe or find the line of identification before saving money.

"One is willing to fight a battle." Yang Zhenhua said that there is no fixed price in the antique line. So don't believe in the auction price. It is for reference only. When identifying whether a piece of jade is old jade, it can be identified from five aspects such as modeling, ornamentation, coloring, knife method, and skin (padding).

In terms of styling, there are usually specific stylings for each period. In the ancient world, there is an “standard calibrator”. If the shape of a jade is neither fish nor fowl, be careful. The ornamentation is also true, such as the dragon's decoration, "Tang Long", "Song Long", "Clear Dragon" ... can be distinguished from the dragon's hair, claws and scales, if Zhang Guan Li Dai is certainly false. Second, due to the limitations of the production process, the “old things” are mostly hand-made, and there is a big difference between the cutting methods and modern equipment. Yang Zhenhua said that unearthed ancient jade is generally bleak. What kind of earthworms are ambiguous? There are also differences in phoenix color due to factors such as climate and pH.

Yang Zhenhua reminded collectors that nowadays, there is a computer laser version of the "Zigang" jade card, and the lines are very delicate and special care must be taken. The difference is that this kind of "zigang" jade card is very regular, there is no trace of artificial engraving; then the decorative surface of the "matt" surface will be reflected in the light.