Black Tourmaline Generator
Black Tourmaline is a strong grounding stone used to repel negativity and is also a protective healing stone. Black Tourmaline's strong link with the earth transmutes harmful energies you may be carryijng within your aura and your environment and sends that energy down a cosmic drain into the earth. Because it is so grounding, Black Tourmaline replenishes depleted energies with the energy of earth.(Nicholas Pearson-Crystal Basics). Coupled with Quartz as an amplifier, a Black Tourmaline generator as part of Crystal Grid would intensify its repel, protection & healing abilities.