Ancient jade identification ( A) _ figurine skills

Core tip: gu yu the biggest difficulty lies in the identification of the old and new investment and authenticity. Here introduces how the difference between old and new jade. The characteristics of the old and new jade: because the old jade circulated for years, edge horn can produce the biggest difficulty lies in the identification of new and old gu yu investment and authenticity. Here introduces how the difference between old and new jade. The characteristics of the old and new jade: because the old jade circulated for years, edge horn will produce little corrosion points, hand play khan, wear for a long period of time, the corrosion become yellow or red, the bottom of the corrosion with remnants, hand touch no sharp corners, feel natural, comfortable, residual marks the transition is also very natural. New jade useful tools to the bottom of the residual marks, with a sharp Angle, has the feeling of obvious prick the hand when they touch. Craft: the difference between the old jade processing is artificial cut and polish, the curve is very smooth, if Yin line width, depth, the line is flat cleft, warm and comfortable appearance. And the new made of jade, uneven line transition, depth is inconsistent, so that the line is too sharp on both sides, or split. Many essential difference: the old jade embellish, excellent quality of the jade. Jade, jade can be divided into white jade, topaz, jasper, mo yu a few broad categories. White jade as the top grade, produced in xinjiang's hotan in our country. The modern production of new jade because in fine jade is expensive, generally use green jade, jade leftover material or anywhere else, some chemical synthesis alternative, thus causing the sham as the genuine in the market. Identification of the two, to identify manufacturing s harder. Because some ZuoWeiZhe wring a false, the method of high technology, it is hard to judge. Gao as old as early as the northern song dynasty, the qing dynasty and the republic of China its height. According to the record, jade as the old main methods are: the jade pieces in the fire barbecue, make its color white, known as the 'pseudo lime jade'; To put live sheep leg cut open, small jade, sewed up with lines, a few years later by surprise, bloody filaments jade, known as 'sheep jade'; With plum boiled quality of a material soft jade, pretend to be 'water jade'; Jade with iron filings, with hot vinegar water, buried soil after months of take out, just like ancient jade. There are a number of methods, to name a list. Gao practices in modern times, the use of high-tech technique but also emerge in endlessly, ZuoWeiZhe hydrofluoric acid is often used for strengthening treatment, but only corrosion erosion surface, not your neri, treated by chemical false jade, can't collection, because of its harmful to human body; Serious can cause central nerve damage. In recent years, with the development of market economy, the cultural relics market after opening, false ancient jade showed the trend of flood. Some color, dyeing, after implements made or painted red ochre color, loess, unearthed in fake; Some have done fuzzy ornamentation, or deliberately hurt a deficiency; So, the ancient jade collector, must master the basic jigan technology.