Tourmalinated Quartz, Black Tourmaline and Clear Quartz – Black Tourmaline is the ultimate protective stone. Not only will it protect you and your aura from negativity and psychic attack, but it will return the negative energy to the sender. Clear Quartz acts as an amplifier and purifier. By bringing in light, it helps to purify your energies and increase the protection around you. Tourmalinated Quartz combines the energies of both Black Tourmaline and Clear Quartz in a single stone, which only serves to strengthen the properties of this grid.