The jadeite jadeite jadeite is a kind of pyroxene aggregate mainly composed of jadeite minerals. The reason why jade is called "Jade" is because in the past, jade and other jade produced in China were called jade. In the early Qing Dynasty, jade was transported from Myanmar through the second Silk Road to China. Some jade jade is different, it is called "non-green", that is, this is not the meaning of Chinese jade; because the color of jade is uneven, most of them are accompanied by red and green hues on the light foundation, the color is like red The feathered ostrich and the green-feathered kingfisher have changed the name of "Nu Cui" to "Jade" for a long time.
Because of its deep and steady character, Emerald has won the reputation of “King of Jade†with its unreplaceable advantages. Its merits and demerits should be viewed in terms of color, transparency, shape and impurities. Color is an important part of determining its value. It must be rich and uniform, and must be color positive; good jade has good transparency, fine texture, green and dark green are transparent, such as clear spring water, with luster, good moisture; shape The size and thickness should be suitable, and the thickness of the miller should be uniform.
How to identify the authenticity of jade?
First, we must know the difference between jade and stone, which is most easily confused with jade. The stone is artificially smelted, the structure is slack, and the green is uniform. Although it is intentionally made uneven, it is very unnatural. The break of the stone is bright, easy to damage and lose light, the stone is light, and some have bubbles. Jadeite is a natural ore with a tight structure and uneven green color, but it is natural. It has green and no bubbles. The break of jade is stone scorpion, hardness and weight.
Second, we must know how to identify the twilight jade. The twilight jade is put into nitric acid or sulfuric acid, and the green will fade after a few hours; the twilight jade will be placed on the iron at 70-80 ° C, and the green will fade after a few hours. These two features can be used to distinguish between twilight jade and natural jade.
Third, we must know the difference between jade and green natural ore. The green of natural ore that is easily confused with jade is not as bright as the green of jade, and the characteristics are different. For example, jasper, most of them have black spots, black dots are triangular; Australian stone, green flashing blue head, color is not pure; green agate, Green flashes blue, the color is even, but it is transparent; Dongling stone, green flashing blue, flashing gray, the surface shines little white star. In addition, the beam splitter is a key tool for distinguishing between dyed and natural green jade.
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