1, it's hot and sweaty in summer, so it's best not to wear red coral ornaments. The main component of red coral is calcium carbonate, which is unstable in chemical properties and easy to react with surrounding substances. For example, in the sweat secreted by human body, acidic substances react with calcium carbonate to generate white calcium oxide, which makes the surface of red coral white.
2. Red coral should not touch perfume, cosmetics, distiller's grains, vinegar, salt, etc. This is also to prevent it from reacting with such chemicals and changing its texture.
3. The hardness of red coral is relatively low, so it should not be put together with other jewelry to avoid scratches and damage, which will affect the smoothness and neatness of the surface. It is best to wrap it in soft cloth and store it separately.
4. Avoid high temperature or long exposure. Coral contains water. High temperature and high fever will make it lose water, expand with heat and contract with cold, and also destroy the compactness of its structure.
5. After cleaning, you can apply colorless and wax-free baby oil or olives on the surface of red coral to restore its bright luster.
6, red coral is also afraid of high temperature environment, afraid of soot and so on. So people who have worked in restaurants for a long time, especially those who work in the kitchen, should not wear red coral.
7. Red coral is very fragile in nature. If exposed to water for a long time, fluorine in the water will enter the red coral from the holes, which will make the red coral lose its luster and become dim over time.
8. People who want to work in bathhouses or hot spring clubs for a long time should not wear red coral, otherwise it will cause great losses.
9. Buddhism has an unwritten rule that the red coral bracelets ordered in the temple must be worn on the left hand.
10, red coral bracelets are different from ordinary jewelry, so others' bracelets must not be touched and played casually.
Identification method of red coral
First look at the texture. Red corals all have longitudinal stripes parallel to the growth direction of corals, and they are closely arranged. In addition, the cross section of red coral has ring patterns similar to tree rings, so we should pay attention to these two textures when we identify them with the naked eye.
Longitudinal view: coral has parallel growth lines in the longitudinal direction, and the direction is parallel coral cylinder. If it is a ring surface, it is usually on the back. If it's carved, it's on the surface.
Looking horizontally, the cross section of coral has the growth line like annual rings, from small to large. Growth lines with concentric circles usually appear on coral ornaments.
Second, look at the color. The color of red coral is bright red, whether it is shallow or deep, it is alive and immortal! And red coral has bright waxy luster, while dyed red coral has no luster and its color stagnates. The color of coral is from the inside out, such as a coral column. The closer to the surface, the darker the color of coral, the deeper the layer and the lighter the color. In other words, the color of coral is uneven. If the color of coral is the same inside and outside, it is suspected to be false.
Third, listen to the sound. Real corals look delicate, but they make a crisp and tough sound when they collide with each other. Generally, plastic or other imitation corals will not have such a hard and brittle sound. This kind of sound is especially obvious on dendritic corals.
Fourth, weigh the weight. Coral has a good sense of weight. Generally put in the palm of your hand will give people a heavy feeling, which is inconsistent with its delicate feeling. This weight is also one of the bases to distinguish red coral from some inferior counterfeit products.