Grey mystic aura quartz is said to enhance communication and writing skills, and defend from psychic attacks. White mystic Aura Quartz helps with clarity, serenity, inner peace, emotional regulation. This crystal promotes kindness, peace and compassion. Tourmalated Quartz helps release negativity, detoxify and balance energy. Black onyx is said to help you persevere and stay calm in trying times. And the black evil eye gives you power and protection.