"Related questions, Kuba help Richard to answer for you. If the crystal is worn for a long time, it will be contaminated with some dirty things, and it will fade, change color and so on. So how can we keep the crystal perfect for a long time? There is only one way, and that is degaussing. Crystal, especially amethyst bracelet, is everyone's favorite accessory, and regular maintenance is even more essential. But I believe many people don't know the maintenance method of amethyst bracelet, so how to maintain amethyst? 1, amethyst is brittle and easily broken, so when wearing it, you must pay attention to avoid colliding with hard objects or falling to avoid damage. 2. Generally, gemstones are afraid of high-concentration chlorine bleach. Try not to wear it when bathing, washing clothes and cooking. Trace chlorine in washing powder and tap water is easy to corrode amethyst bracelet, which will make amethyst lose its original color. 3. Fear of heat and ultraviolet rays is a common weakness of gemstones, so be sure not to put the amethyst bracelet in a place with high temperature or strong ultraviolet rays to avoid fading the amethyst bracelet. When collecting, be sure not to put it under strong light. 4. Try to avoid contact with cosmetics. In modern society, cosmetics contain more or less mercury, such as amethyst ornaments with silver edges or Phnom Penh. Contact with these substances is prone to chemical reactions and spots. Take it down and store it when you make it up. 5. When doing exercise, bathing or swimming, the amethyst bracelet should be removed to avoid contact with sweat, because these acidic substances will corrode the amethyst bracelet. 6. Amethyst bracelets must be degaussed, purified and maintained after a period of normal wear. The common method is degaussing with salt, which is relatively simple and can be purified once every 1-3 months. If economic conditions permit, you can also choose crystal caves or crystal clusters for degaussing evolution. (Answer Editor: Brother Hippo)