Black Tourmaline repels negativity while providing a grounding and protecting energy. This crystal encourages optimism as well as good luck and happiness, regardless of your current situation. Black Tourmaline with Quartz has the same qualities as pure Black Tourmaline, however, the energy is magnified due to the presence of Quartz. Quartz enhances wisdom and sharpens the mind. It purifies your negative energies, thoughts and feelings while keeping you calm and stress-free.