Cleansing your crystals before using and regularly is necessary as they will pick up negative energies or vibrations and will need to be cleansed again and re-energised.
1. Smudge Stick - you can get one from here, light it then blow out any flame. You can now pass your crystal through the smoke a few times to clear it. Carefully stub out the smudge stick in the dish.
2. Using other crystals - lay your crystal on a selenite stone or clear quartz, citrine, amethyst (cluster/stone/chips) for at least 6 hours.
3. Brown Rice - Place your crystal on top of the brown rice and leave overnight. Make sure you dispose of the rice afterwards.
4. Moonlight -Leave your crystal under moonlight overnight if you are able to. By absorbing the energy of moonlight, you will allow their vibration to naturally lift. Be wary of placing it where it will get strong sunlight on it, as this can fade its colour.