The reason why the jade is very precious and rare is mainly because the natural structure and formation of the jade requires a long time and conditions. Moyu is the main variety of Hetian jade, and it is also a high-quality jade variety. Hetian jade jade is grayish black to black, and the coloring factor is caused by containing a certain amount of graphite inclusions. Regarding the ink jade, first of all we must understand that the ink color is not black, nor carbon and gray. The ink color is not the natural color of the material in the universe. It is the time from the emerald green to the long universe, and it is slowly under the action of cosmic rays. Deep black becomes slowly growing. So the longer it is, the darker it is, but it still has the essence of dark green under strong light. How to identify ink jade, black jasper, black sapphire, or black kava? In fact, the method is very simple, as long as you use a flashlight with a strong light, you can make a correct judgment from the light color. The black jade has three kinds of bottoms, the bottom of the white jade is the ink jade, the bottom of the jade is the ink jade, and the bottom of the jade is the black jade. But Mobi is Mobi, black and blue is black and green, there are obvious differences, can not be confused, because the price varies greatly. If it is a jade, it should be white. The jade looks all black with the naked eye. It does not see the base of white jade, it is a black stone; when it is hit with a strong light, there will usually be a white halo, because the light transmittance is poor, the general halo is very small. About 2 mm, you can see the black spots on the white jade. Hetian Moyu also has opacity, but the texture is delicate, very oily, it is difficult for novices to identify. If it is black sapphire, it should be yellowish green. The characteristics of Hetian black sapphire are that in the natural sunlight, the black is green, and when it is cloudy or when the light is bad, it looks black, and basically no green is seen. If it is ink jasper, it should be green. Even though the color of the jasper is very dim, it looks green when it is light. The jasper light can be seen in the green halo with obvious black spots. Generally, it is painted black with sunlight, and if it is illuminated with strong light, it will be green, because the essence of black jasper is jasper. The identification of black jasper looks dark, and the second is to see if there are black spots in the green light under the lamp. The purer and more transparent the quality, the more valuable it is. The biggest difference between black kava and ink jade is: Generally opaque, not oily at all. According to general experience, some stones that are not light at all, although unknown. In addition to the identification by strong light, there is a very effective way to identify with a magnet. Many black cava stones have a large iron content and can attract magnets. Some black kava stones do not attract magnets, they cannot be deduced, and they cannot be generalized. An effective way to avoid eating a strong drug is to sneak a vote and not watch it with a light as long as it can absorb the magnet. The principle of identification of ink jade: Ink is rich in all black, black as pure paint, as fine as sheep fat, is the best in ink jade. There are three aspects to the identification principle of ink jade: First, the color is black, pure black, gray, green is not good. The color jewel and jade color evaluation are the same principle, and the color purity is the first one. Second, the distribution of colors should be uniform. Obviously, the whole ink is the best, and the ink can only be used as a color. The use of reasonable color can add a lot of color to the jade carving, and it seems that the jade is vivid. Dot ink is difficult to use, generally in the process of jade processing, smashing and removing it. Third, it is the delicate degree of jade. The delicate degree of jade is the preferred principle for evaluating Hetian jade. The third is the delicate degree of jade. The delicate degree of jade is the preferred principle for evaluating Hetian jade.
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The principle of identification of Hetian jade jade