In recent years, the price of red coral has been rising, and some jewelers have also said that red coral has become the hot spot of the next round of jewellery collection, and the price has surpassed that of Hetian jade. Whether it is true or not, red coral is indeed more and more popular, so you should also see the true and false when you buy it. The following small series tell you what are the key points of red coral identification?
First, look at the texture. Red corals have longitudinal lines parallel to the direction of coral growth and are arranged more closely. Outside the cross section of the red coral, there is a ring like the annual ring of the tree, so pay attention to the two textures when identifying the naked eye.
Second, look at the color. The color of the red coral is a vivid red color, whether it is shallow or deep, it is alive, not dead, not stagnation! And the red coral has a bright waxy luster, while the dyed red coral has no luster and the color is also stagnation. Dead. The color of the coral is from the inside out, for example: a coral column, the closer to the surface, the darker the coral, the lighter the inner layer. In other words, the color of the coral is uneven. If the color of the coral is consistent inside and outside, it is suspected of being fake.
Third, listen to the sound. Real corals look delicate but have a crisp, tough sound when they collide with each other. Generally, plastic or other fake corals do not have such a hard and crisp sound. This sound is particularly evident on dendritic corals.
Fourth, the weight of 掂. Coral has a good sense of weight, and it is generally a heavy feeling that does not match the delicate feeling of the palm. This component is also one of the basis for identifying red corals and some inferior counterfeits.
5. Identification of natural corals and dyed corals: Dyed corals are usually dyed with red and other colors of white corals with organic dyes. The distinguishing feature is that the dyes are enriched in the cracks, and the internal color depth is shallow and the surface is different. Cotton is dyed with cotton swabs of acetone.
Make Shoes Chemicals,Pvc Plastic Powder,Dioctyl Phthalate Properties,Dioctyl Phthalate Uses
WENZHOU MINGSHENG IMPORT&EXPORT CO.,LTD , https://www.mingshengtrading.com