With the development of The Times, our economic condition, also is in gradually improve, the request of our life is more exquisite, at ordinary times, we girls like to buy some jewelry, and the types of jewelry, still more, so jewelry maintenance should pay attention to what matters is what and special requirements on the following details for us to xiamen &artificial jewelry co author. ( 1) Opal necklace. Opal hardness is low, should avoid friction and other items. Opal contains water, should avoid high temperature, otherwise due to the evaporative loss of water, light, transparency, lost or attack. In addition, opal don't acid, so opal jewellery should avoid high temperature and acidity. Opal jewellery collection, also should be pay attention to the environment cannot too drab, otherwise will constitute the dehydration and cracks, so that the split. In order to prevent dehydration, in the dull season, every time opal jewellery should be on a clean water. ( 2) Amethyst necklace. The color of amethyst is not stable, high temperature or long time exposure can make up the faded. Wearing or collection process, should avoid high temperature or exposure. ( 3) Lapis necklace. Lapis lazuli first necklace after staining, must not be soaked with water and rinse. Because the lapis lazuli is granular aggregation of many kinds of mineral composition, if soaking and rinse with water, dirt on the surface of the gem will be to internal penetration, which will change the lapis lazuli original glory. Lapis lazuli jewelry after staining, can quietly wet cloth to wipe, wipe the dirt. ( 4) Jade necklace. Jade is strong and toughness, impact resistant ability. But, after processing of jade products, often thin, by the impact will be broken. ( 5) Malachite and turquoise necklace. The hardness of the two stones are the water, very easy to wear. Chemical properties of the two is not stable, will be susceptible to corrosion in acid solution. Turquoise at high temperature, easy to change color, so that a long time exposure and the sweat soaked, also can make turquoise color. These are in the process of wear and collection must take care of that. ( 6) Emerald necklace. Emerald slightly larger than the hardness of jade, but more brittle than jade, so can't withstand the impact and break more than jade. In addition, the emerald afraid of high temperature, in case of fire is reduced fading, easy cracking at high temperatures. ( 7) Pearls and coral necklace. Jewelry processing factory prompt, pearls and coral hardness is low, easy to the surface due to friction loses luster. Both elements are calcium carbonate, will suffer corrosion dissolved in acid. Summer is easy to sweat, sweat will also make the surface of the pearl, coral was destroyed and lose the original luster. In the cosmetic powder, perfume and hair cream, etc. , also can make the pearl gradually. So, had better not to wear this kind of jewelry in summer. Assuming that are polluted with perspiration, rinse in clean water, and then quietly wipe with a soft fabric. Before pearl jewelry collection, be sure to after rinse, must avoid the cosmetic store. Above is the author to introduce the maintenance of jewelry to pay attention to what matters and special requirements on hope to the end of the author, to learn more about the knowledge of the xiamen &artificial jewelry co, welcome on this site.