The process of manual identification is a process that accumulates over time and requires a long period of practical experience. In general, you need to start with the following characteristics of jade: 1. Structure: The structure of jadeite is a variegated interweaving structure, which refers to a structure in which fine-fibrous mineral crystals around transparent granules are intertwined under the action of metamorphism. In the jade, there are small lumpy white flowers composed of opaque or slightly transparent white fibrous crystals, so it is called "stone flower" or "stone brain". 2. Kind of pit: The pit of jade is composed of structure and texture, and jadeite is composed of small crystals. The smaller the crystal grain, the denser the texture, the better the transparency, and the better the effect of polishing. In the jewelry industry, the pits are divided into old pits (also known as old species) and new pits (also called new species). The old pits are bright in color, and the color and the ground are integrated into one, with high transparency and best quality. The new pit, although the color is also fresh, but the transparency is poor. The old pit and the new pit are determined according to the age of jade formation. 3. Color: The difference in the color grade of jade is reflected in the value. When it is judged and evaluated, it must be distinguished by its color. It is mainly red, green and purple, and the green in monochrome jade. The pure purple and red are the high-grade colors in the jade, especially the green is the most expensive. The green of jadeite should be strong, yang, pretty, positive, and harmonious. Green varieties are best in sapphire green, glass green, brilliant green and green seedling green. 4. Head: The head is the transparency of the jade. The higher the water head, the better the germplasm and the more precious it is. Care must be taken when observing the emerald head, as transparency is related to the thickness of the jade itself. In addition, special care must be taken to make the finished jade products, such as hollowed out in the middle of the finished product. Also pay attention to the agate substitute, because the transparency of the agate is also better, so someone will use the agate color to imitate the emerald. In Hong Kong and Taiwan, the transparency of jadeite is also divided into "pass", "put", "transparent", "ice", "ying" and other grades, of which "Ying" is the top grade. 5. Land: The land of jade is better, whether it is ç¿¡ or ç¿ , the outer part of the texture should be fine and even, the inner part of the texture should be solid, fine, clean, and the water head is good, the good land must be coordinated with the green color, mutual Take care of it, thus setting off the rich green. Emerald land is best for glass and egg white. 6. Gloss: As a jewel, jade has a high requirement for its luster. It is a direct reflection of the quality of jadeite. It must have strong glass luster or pearl luster. 7. Hand feeling: Due to the high hardness of the jadeite, the structure is dense and delicate, the polishing degree is good, the finish is good, and the hand touch has a very smooth sliding feeling. In addition, the emerald is attached to the face or placed on the back of the hand to have a cold feeling. 8. Perfect: Multi-finger jade is perfect, including no defects in the jade, the shape is perfect and the block is large. Regarding the inherent defects, it should be viewed dialectically. In general, black spots, stone flowers and splits are better than those containing these defects, but sometimes weak defects, as long as they are not in the conspicuous part of the finished product, will not affect the jade. The value, on the other hand, confirms that it is the basis of the real goods, especially in the case of today's market filled with fakes. Cowboy Shirts,Checked Cowboy Shirts,Cotton Twill Yarn-Dyed Shirts,Cotton Brushed Western Shirts SHAOXING UNIVERSE IMPORT AND EXPORT CO.,LTD , https://www.zjshirts.com