Cleansing your amethyst is an essential step to remove any unwanted energies and keep the crystal at its peak performance. One popular method is to set it under the moonlight during the full moon. Another option is to smudge with sage or other cleansing herbs, letting the smoke pass around the crystal. Alternatively, you can use sound vibrations from a singing bowl, or gently bury the amethyst in a bowl of brown rice for 24 hours.