Jade jade is the most valuable species in the jade family. The natural jade color is very beautiful and very valuable. For the identification of jade jade, many people may not understand it. Today, China Jewelry Network is a small series to introduce jade jade identification. The relevant knowledge, let's take a look.
The purchase and identification of jade
In general, consumers can look at the texture and color of jade with a 10x magnifying glass when purchasing jade. In most cases, the appearance of A cargo jade is smooth and smooth, B, C goods jade is rough texture, there are faint cracks, the color is not pure and uniform; can listen to the sound, A cargo jade sound is crisp and rigid, B goods jade is dumb Can be seen under transmitted light, B goods are blurred and opaque, the edges of green color blocks are not clear, and C goods are darker in cracks.
In the case of Jade, the first thing to look at is the transparency of the jade jade. Generally speaking, the jade is transparent or transparent. The expert is called “old jade†and the highest value. The translucent jade is called “new and oldâ€. The price is second. The jade is opaque, and the dryness is called "new jade".
The second is to look at the color, the color of jade is rich, there are green, red, purple, gray, yellow, white and other colors, the most valuable of which is green. According to the shade of green, it is subdivided into more than 10 kinds of gemstone green, brilliant green, and glass green. The high-quality emerald green is rich, transparent, oily, and free of impurities. When it is struck with a hard object, its sound is crisp and loud. The fake jade in the market, the common materials are imitation and ochre (ie, additive). The material is imitation made by artificial baking of glass. Its structure is slack, the green is more uniform and dark, and some have bubbles. The sound is hoarse when struck with a hard tool.
However, for those consumers who don't know much about jade common sense, it is best to ask the authoritative inspection department for identification. Insiders suggest that consumers can purchase jade jewelry from regular merchants, not only with credit guarantee, but also with perfect after-sales service.
Jade identification considerations
1. About "Cui Sex"
Some experts' monographs consider that natural jade is different from other jade. The important feature of natural jade is that it has a "green" (commonly known as "fly wings"), that is, the crystal flash phenomenon in jade, which is the flash of mineral crystal face. Microscopic crystal jade generally does not see "cade", so "cade" can not be used as a characteristic mark of natural jade. In other words, it is not necessarily natural jade that there is no "green". Of course, it is easier to distinguish if it shows that it is green. Therefore, Cui Meng believes that the more high-end things, the fewer the cockroaches, but the easier it is to artificially imitate.
2, percussion
As the anti-counterfeiting technology continues to improve, new jade species continue to be discovered and enter the jade market, knocking sounds cannot be judged as jade. The basis of A and B goods. Some jade sellers often use two bracelets to gently strike a crisp "é“›" sound to show that it is a natural jade, and the impact of filling the obvious jade B goods is slightly dull. However, the sound of "é“›" is not necessarily the natural jade, and the amphibole and the long jade also have this sound. Certain B goods that are currently on the market can also emit a crisp "beep" sound.
3, netting
The jadeite that has been rinsed with strong acid generally has obvious pore and textured structure. Stress and weathering in natural jade can also produce obvious pore and textured structures, which are often difficult to distinguish from those caused by acid corrosion. The natural pores of the jadeite can be filled with later zeolites, clay minerals, etc., and may be filled with mineral powder or polishing powder during the cutting, grinding and polishing process. These fillings are not considered B goods and are easy to identify.
4, the classification of jadeite grade
Under the premise of the natural jadeite, the identified jadeite jade pieces are classified according to the 5C2T standard: composition, color, clarity, cut, weight, transparency, structure, and price.
Jadeite is the crown of jade, and high-end jade is constantly creating amazing prices at various auctions. Therefore, B, C and other counterfeit products that counterfeit natural jade emerge in an endless stream, making the merchants, consumers and testers of the brand have a headache. Everyone should pay special attention to the actual purchase of jade.
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