The structure of jade: "species" is an extremely important sign in the commercial evaluation of jade, which indicates the pros and cons of jade jade. For colors, different regions, different consumers have different aesthetic standards, and often have different requirements. For the direct standard “species†for evaluating jade quality, it is consistent, so there is a saying that “the layman looks at the color and the insider sees the speciesâ€. Jade merchants are used to dividing jade into new species and old species. According to this division, the authors believe that for the jadeite based on jadeite, the so-called "species" actually reflects the structure and structure of jadeite minerals. The new species of jade, jadeite has coarser particles, loose jade, poor transparency, and can be discerned by the naked eye. Observed under the microscope is a whole crystal plasmid structure. Old species, jadeite particles are very fine, under the magnifying glass can see fibrous single mineral (commonly known as fly wings), jade is dense, translucent. Hit it, the jade sound is crisp and pleasant. Under the microscope, it is observed as a scaly crystal structure or a fibrous crystal structure. The symbiotic pyroxene particles are wrinkled and deformed, and have been subjected to external force. In addition to the structural structure affecting the "species" of jadeite, the content of diopside in jadeite is also a very important factor. If the epithelium can clearly see the diopside radial aggregate, the jade is dark green, the base and color of this jadeite raw material are not satisfactory, but it may appear veiny or clumpy. Between new and old species, a transitional type can still be divided. The scaly crystal structure and the whole crystal plasmid structure coexist, and the number is approximately equal. The distribution of new and old jade raw materials is also uneven, especially for large bricks and flower materials. The part that opens the "window" is always the best part of "planting" and "color". In addition, it may be a defective product. Judging the jade "species", we must carefully study the mineral composition, structure and color of the raw material skin. Special attention should be paid to small “window†materials that are long and narrow. This often means that the distribution of old species is extremely uneven. Very limited, and the fissures are very developed, and the narrow-shaped "window" is the fissure at the border. The relationship between “species†and “color†and “transparency (water)†is very close. Some jadeites have a lighter color, but they have veined green silk (commonly known as the color root). Because of the good transparency of the "species", after making the handicrafts, there may be a more satisfactory color, the so-called "green eating stones." However, if the "species" is poor, even if it has a deeper green color, after the crafts are made, the color will not be gorgeous, that is, "the stone is green." In summary, the structure of jadeite determines the "species", the proportion and hardness of jadeite of different species are different, and the specific gravity and hardness of old jadeite are generally larger than the new species. Jacqurd curtain fabrics, with different weights and reasonable prices, we are here waiting for you to come, welcome anytime. Jacquard Coating Curtain Fabric Shaoxing Angcan Import & Export Co., Ltd. , https://www.all-can.com.cn
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