2. When the crystal is worn for a long time, the magnetic field is easy to change, so it should be cleaned and degaussed frequently. You can put it in a crystal hole or soak it in clear water for 20 minutes before cleaning.
If you want your crystal to have a more thorough color, you need to play with it often. The crystal you just bought won't be thorough. Touch with both hands, and it will look better and better if you wear it often.
4. Crystals have memories, so when raising crystals, your own crystals must not be touched by others, otherwise there will be memories of others. If it is touched, it needs to be degaussed before wearing it.