How to identify jade old and new

General before the Han Dynasty jade "Jade", Museum of the United States and Britain, as well as Hong Kong and Taiwan and other places jade collectors like to collect high above the Han Dynasty of ancient jade. How to identify it?

Possession of jade should first seriously read, read more about Jade's monograph, these academic works embodied a wealth of knowledge. Recommended books; late Qing Wu, Zheng book, "Jade map test, have a detailed description and critical interpretation of jade era, uses the name, size and precise drawing, well worth consideration.

Contemporary Yang Boda editor of "The Complete Works of Chinese Fine Arts. Jade, Hebei Fine Arts Publishing House," "one to six volumes of the Complete Works of Chinese Jade Zhou Nanquan ancient jade, Zhao Ming, ABBA's" China's ancient jade, Zhang Guangwen Jade Industry ", Hong Kong Li Yinghao identify jade", "folk jade", "Body Jade", "hedge Baiyu, of Taiwan jade expert Lee bellman old gentleman's jade identification Complete Works (upper and lower volumes). .

Direct contact is very important, most people across the glass to see only in museums, take a look at the doors of all kinds of jade should as much as possible to get started. Touch which will be able to feel the difference. Really old ancient jade jade, feel heavy, silky appearance impregnation naturally neat knife pack slurry moisture. New jade do not have these feelings.

At least the Song dynasty antique jade was forged with blood ooze Avision grass, cleared after fraud more and more, and also the creation of an unprecedented, such as "dog Jade, the" sheep jade "," Wind Jade " new products, the introduction of fooled.

The ancient jade imitation goods,? Goods mostly using inexpensive Xiuyan, Dushan, Lantian jade or other low-quality miscellaneous jade, jade hardness mostly lower than 5.5. Wada quality jade material annual production minimal market price of more than 100,000 yuan per kilogram, a hardness of 6 to 6.5, due to the high cost and difficulty of processing, pseudo rarely used and Tian Baiyu.

Generally small steel knife hardness about 5.5 hard poke jade, imitation goods can glance.

VI pseudo Jade has appeared on the market in order to jade powder was synthesized in high pressure, color and hardness approximation and nephrite, take special care to identify.

Seven real jade soil Qin lime 沁, mercury Qin corpse Blood Qin, cinnabar Qin, copper Qin, the surface oxide layer. ? Goods Qin spot some fried, some grilled, some etching chemical potion should figure out a genuine and? Products in the aspects of color, gloss, thickness difference and distinction.

Jade surface carving lines cross-section of different, V-shaped, semi-circular and U-shaped, U-shaped characteristic of the modern "machine work".

Nine, carved lines notch surface hull consistent in color, package pulp genuine, linear groove goods both sides wool Road chipping characteristics of the modern "machine work".

Related web sites:Jade Crafts