In modern society, jade products are favored by consumers as high-end jewelry. However, with the continuous advancement of technology, there are more and more high imitation products on the market; the high-grade “old pit glass†jadeite produced by nature is very rare, and its corresponding value and price are also quite high. As a result, some jadeites that have been artificially processed have appeared on the market. This is the B goods in the mouth of the expert. According to statistics, the jadeite of B goods on the market now accounts for more than 40% of the market, so the following Yanyuanxuan will let everyone know how to identify inferior jade.
The so-called "B goods" jade is a natural jade with poor quality, soaked in acid, to make it dirty, yellow, and injection (when pickling is light, no glue), then make it, water, Emerald with improved color. Because the key step is the pickling process, the southern part of China is also called "bathing" or "bathing" jade.
Usually we all know that the "A goods" (without any manual treatment) jade has been worn for many years, and it is constantly in contact with the human skin. The jade will be more moisturized and will also play a health care role for the human body. The mood is also very pleasant, this is what the saying goes, "People raise jade, jade raises people".
However, the "B-goods" jadeite can't stand the test of time, and the jade quality will deteriorate. This is because the "B goods" jade was corroded by acid during the treatment process, although the dirt in the jade was removed, the transparency was increased, the original green color was retained, and the contrast between the ground and the color was increased, but the structure of the jade appeared. Fine cracks and voids, so the glue is pressed into its cracks and voids under high temperature and high pressure, so that the jadeite species, water and color are improved, just like high-grade natural jade. However, as time went on, the glue filled with jadeite slowly aging and fell off, and the jade became gradually faint and lost its brilliance.
"B goods" jade is generally used to imitate the "A goods" high-grade jade, but the two can not be compared. After the treatment of the "B goods" jade, its natural structure was destroyed, it became evacuated, and the quality of jadeite was reduced. The price should be much cheaper than the "A cargo" jade of the same quality. Therefore, when purchasing jadeite, you must identify "A goods" and "B goods".
"B goods" jadeite usually has the following characteristics: the color is more vivid, most of the green color has no color root, the contrast between color and ground is strong, unnatural; the gloss is weak, mostly the resin luster, less than the near-glass luster of the "A goods" jade; structure More loose. Magnification inspection shows that the crystal particles are staggered, displaced, and lose their directionality; the gemstone magnifying glass can be used to observe the surface of the orange peel-like pits, called the "orange peel effect"; the density and refractive index are usually relatively lower than "A goods" Emerald; if glued, it is pink or yellow-green fluorescent under ultraviolet fluorescent light; gently tapping the "B goods" jade bracelet, its sound is stuffy, and the sound of "A goods" jade bracelet is crisp and sweet.
In addition, for the injection of "B goods" jade can also be identified by the infrared spectrometer in the detection organization, its infrared spectral characteristics map is completely different from the infrared spectrum characteristic map of "A goods" jade, but the pickling is slightly unspecified The "B goods" jade of glue is difficult to identify by infrared spectroscopy.
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