JET

This matte black stone has much in common with a black hole. It will absorb an unlimited amount of bad energy, pull it into its core, and transform it into useful pure energy. It can clean an aura or energetic field, absorb stray negative energy, and is a serious stone of protection for everything, especially magical and astral energies during psychic practice. (Also amazing for bad dream prevention) Anyone who is working with crystals and is doing work on a cosmic level should have some of this in their space.