China has a history of 7,000 years of jade use and 2,500 years of jade research, which has earned China the reputation of "Jade Country". The early history, long duration, wide distribution, numerous shapes, exquisite craftsmanship and deep influence of ancient jade articles in China are beyond the reach of any other country. In the long-term historical process, China people have formed a deep-rooted national psychology of worshipping and loving jade, and their deification, spiritual concept and special function view of jade are rooted here. As an important part of Chinese civilization, jade culture itself has an immeasurable and far-reaching influence in thousands of years of civilization history in China. The famous scholar Joseph Needham even said in the History of Science and Technology in China: "The love for jade can be said to be one of the cultural characteristics of China, which inspires sculptors, poets and painters."

First, from the identification of jade craft traces; Second, oxidation identification; Thirdly, condensate water identification; Fourth, the evaluation of artistic level; 5. Qin color identification; Six, odor recognition

First, before collecting jade articles, we should first read carefully and read more monographs on ancient jade, which are rich in knowledge. Recommended books are; Textual research on ancient jade written by Wu Dazhi in the late Qing Dynasty has a detailed explanation and textual research on the age, use, name and size of ancient jade, which is accurate in drawing and of great reference value. The Complete Works of Fine Arts and Jade Articles in China, the Complete Works of Jade Articles in China 1-6 published by Hebei Fine Arts Publishing House, the Ancient Jade edited by Zhou Nanquan, the Ancient Jade in China edited by Zhao Ming and Li Qun, the History of Jade Articles edited by Zhang Guangwen, and the Identification of Ancient Jade, Folk Jade, Protected Jade and Precious White Jade edited by Hong Kong. Taiwan Province ancient jade expert Mr. Li Gengfu's Complete Works of Jade Identification (Volumes I and II), etc.

Second, direct contact is very important. Most people can only see through the glass in the museum, and all kinds of ancient jade should be seen as much as possible. You can feel the difference if you touch it too much. The real ancient jade has a long history, heavy hand feel, smooth appearance, natural color, neat knife work and moist patina. Xinyu doesn't have these feelings.

Third, at least in the Song Dynasty, antique jade appeared. At that time, someone used rainbow grass to fake chicken blood infiltration. After the Qing Dynasty, there were more and more fakes, and unprecedented creations appeared, such as "dog jade", "sheep jade" and "wind jade", which attracted people to fall for it.

Four. Imitations and fakes of ancient jade mostly use low-priced xiuyan jade, dushan jade, lantian jade or other low-quality miscellaneous jade, and the hardness of these jade is mostly below 5.5. Hotan high-quality jade is rarely produced every year. The market price has exceeded RMB 0/00000 per kilogram/kloc, and the hardness is 6 to 6.5. Hetian jade is rarely used by counterfeiters because of its high cost and difficult processing.

5. Generally, the hardness of small steel knives is about 5.5. Poke the jade hard and you can see the imitation and the fake at a glance.

6. At present, fake jade synthesized from jade powder by artificial high pressure has appeared in the market, and its color and hardness are similar to Hetian jade, so special attention should be paid to identification.

Seven, the real ancient jade has soil infiltration, lime infiltration, mercury infiltration, corpse blood infiltration, cinnabar infiltration, copper infiltration, surface oxidation layer and so on. Some of the spots on the fake are fried, some are baked by fire, and some are etched by chemicals. Find out the differences and differences between true and false in color, luster and thickness.

Eight, the carved lines on the jade surface have different cross sections, such as V-shape, semi-circle, U-shape, etc. U-shape is the characteristic of modern mechanics.

Nine, the face shell of the slot is authentic in terms of color and patina, and the phenomenon of hair cracking on both sides of the slot is the characteristic of modern "machinists".

Please contact for details.

Contact: Manager Chen

note:

If you want to have a free lunch, please don't add me, because it's futile and meaningless.

If you are lucky enough to get something for nothing, please don't add me, because I can't help you.

If you want to realize your collection quickly but can't follow our operation process, please don't add me, I can't and can't help.

Shanghai Juancheng Address: Floor 1, Huayuan World Plaza, Zhongshan North Road 1958, Shanghai.

Manager Chen Ting, Art Appraiser:

The auction collection of large-scale artworks and antiques in Juancheng, Shanghai has been fully opened.

Company features:

1, the full support of national cultural relics appraisal experts and the strong financial guarantee of high-end customers at home and abroad;

2. Media promotion is combined with online screening and shooting, and all-round pre-shooting promotion is arranged;

3. Build a large auction square with obvious industry characteristics and build a diamond-level art trading platform;

4. Shanghai Juancheng not only helps collectors to reach a deal in the form of exhibitions and auctions, but also organizes and participates in various art exhibitions, and promotes and sells collectors' collections with the help of various medium and large exhibition platforms.

5. The company has its own boutique exhibition hall, and all high-end collections can be exhibited for visiting buyers to enjoy and buy.

6. Except the service fee, the company is free of all pre-auction fees, and there is a preferential commission after the auction, and no auction fees is charged;

7. All the fine collections can be appraised by authoritative experts of the country, and an appraisal certificate will be issued to participate in the company's large-scale auction.

Shanghai Juancheng Auction Co., Ltd. is a branch invested by Jinhua Investment Group. Juancheng Auction Co., Ltd. achieved very good auction results in Shanghai last year's 65438+February 17 auction. Together with China Zhong Bo Appraisal Agency, Juancheng Auction Co., Ltd. specializes in the auction, exhibition and appraisal of antique works of art, and now it is collecting lots for collectors from all over the country, including Hong Kong, Macao and Taiwan.

Shanghai Juancheng Auction Co., Ltd. was established in May 2009 with a registered capital of 654.38+million yuan. It is a joint-stock company with the second-class qualification of cultural relics auction, and is a member of fixed-point auction enterprises such as China Auction Industry Association and China Children and Teenagers Fund.

The company has an art department and an asset department, and its business includes art auction and asset auction. Works of art include porcelain, jade, bronze, celebrity calligraphy and painting, rubbings, rare books, ancient wood tooth carvings, coins, miscellaneous philatelic products, contemporary calligraphy and painting, etc. Jinhua Investment Group, the head office, is mainly engaged in real estate and jewelry auction, and has formed a high-quality, professional and powerful evaluation, planning and auction team.