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The appraisal of jade, halcyon
From;  Author:Stand originally
The relation of jade article and Chinese culture is far-reaching, somebody still mixes the Stone Age on Chinese history between the Bronze Age, differentiate technically a times of a jade article, this also has stated reason. In the civilization of thousands of history in, culture of a kind of material can spread chiliad, reach what did not interrupt, besides pottery and porcelain, be afraid is jade article. The producing area of Chinese jade and breed are very much, xinjiang has ” of jade of beautiful wine of “ and ”“ of Yi Liyu of Tian Yu ” , “ , guangdong has ” of “ Xin Yiyu (call “ Na Yu ” again) , liaoning has ” of jade of “ shaddock cliff, shandong has ” of “ Shandong jade, mountain system has ” of “ Yu Chuanyu, henan has ” of “ close jade to wait. In our country the most high grade jade should belong to the ” of “ white jade of Xinjiang and cropland, its color is white, quality of a material is exquisite, the structure is compact, firm and not fragile. Chinese folk thinks to adorn jade article rises to decorate action to be able to achieve gymnastical result again already, still have “ flexibly, the implied meaning of macrobian, restful, lucky ” . The classification of jade is jade cent jadeite normally kind with nephrite kind. Jadeite kind —— jadeite is halcyon namely. The halcyon with good quality is opposite for relatively rare, the price is high, can cater to the grade of high-grade consumer, basically originate in Burmese, hill stone is called on hill, water stone is called in river bottom. Nephrite kind —— namely Bai Yu, gray jade, jasper, topaz. Nephrite is cheaper, reason demand is bigger, crop also over halcyon, main source is in our country Taiwan and Canada, Australia, New Zealand, United States. Because the actor bad halcyon that how identifies halcyon is showily dark and sedate character and morals, do not have with its with the advantage that replace, won the laudatory title of the king of jade. Its actor bad should be mixed from color, diaphaneity, appearance foreign matter in light of face of this all directions. Color —— color is the important segment that decides its value, color wants rich and gaudy and even, must color. The emerald diaphaneity with diaphaneity good —— is good, fine and glossy of quality of a material, verdure and deep green all have transparent feeling, be like clear spring water, possess burnish, water portion is good. The appearance of appearance —— halcyon, size, ply should appropriate, grinding work degree of finish is even. Quality of a material of foreign matter —— is clean, whether to contain foreign matter to decide actor bad of halcyon, the macula, stain, flawless, mark that do not have a flower should be not had in halcyon. What is the A goods on jade article market and B goods “A goods ” is to show halcyon passes conventional technology to machine processing hind, do not change its interior structure, color and hardness, change the jade article of its configuration and exterior only. The does not handle via chemistry jade article of original rock primary colors is OK run in the family, its price also taller. High grade now old hole is planted emerald jade auctions medium price lesser and lesser in international consequently because of its crop every innovation is tall. “B goods ” is to point to after be being handled through chemical, high temperature, eliminate its internal foreign matter, again the liquid with transparent infuse, the jade article that makes its become more glittering and translucent and beautiful. “B goods ” already was changed as a result of its interior structure, time grew to be able to lose primary colors, lose its value. “C goods ” is to pass colored jade, can regard as only man-made is lapidary. ” of “B C goods is classics chemistry is blanched fill up again the colored after colophony jade. Also can regard as only man-made is lapidary. The true bogus that how identifies halcyon the first distinction that should know halcyon and makings stone, it is the easiest as promiscuous as halcyon. Makings stone is person fusion, the structure is lax, green is even, what although have,make designedly is inhomogenous but very factitious, the lousy place of makings stone is bright broken bits, easy caustic is ground and lose brightness, makings stone system is small, some has bubble. Halcyon is natural ore, the construction is tight, green mostly inhomogenous, but very natural, emerald green sex does not have bleb, lousy place of halcyon is stone Cha, hardness is very big, weight. The 2nd should know how lubricious halcyon of appraisal boil in water for a while. Lubricious halcyon of boil in water for a while puts nitric acid or vitriolic inside, the green after a few hours is retreated. color of boil in water for a while halcyon is put on the ironware of 70-80 ℃ , the green after a few hours also can be retreated. Use these two characteristics to be able to use lubricious halcyon of discriminative boil in water for a while and natural halcyon. The 3rd should know halcyon and green are natural the distinction of ore; The green of easy and as promiscuous as halcyon natural ore is not as bright-coloured as emerald green, the feature is not same, be like jasper, have macula for the most part, black inn shows a triangle. Australia stone, green shows blue head, color is impure. Green agate, green Shan La, color is even, but appear simple and natural. Dong Lingshi, green Shan La. Show ash, the surface is glaring small Bai Xing. In addition, spectroscope is to discern the pivotal tool of coloring and natural green jade article.

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