black tourmaline - amethyst - clear quartz New ideas, mental strength and inner growth require an open mind. This intense blend has been created to neutralize everything negative. Whether it comes from working in a challenging environment or just bad vibes from our fellow humans. Grounding black tourmaline stands for protection and safety. Amethyst has been named the perfect companion for black tourmaline to create a powerful, natural shield against negativity. Clear Quartz adds a good portion of clarity. Use GUARDIAN as a screen and enjoy the freedom you'll gain. Black Tourmaline: Improves sleep, alleviates effects of radiation, stress, pain, tension, joint problems & sensations of numbness. Encourages energy flow in the meridians. Helps with intestinal complaints, flatulence and constipation. Amethyst: Assists to lower blood pressure. Releases tension, helps with pain, bruising and swelling. Clear Quartz: Distributes energy, creates harmony between other crystals. Increases the effect of other crystals.