Black Tourmaline- spiritual protection, spiritual healing, symbolizes safety and grounding, used to balance yin-yang energies, as it's considered a physical bridge to the spiritual, promote inspiration and happiness, reduce fear, and build self-confidence, has the symbolic energy of throwing an invisibility cloak over you when it comes to negative energy 
Benefits of copper
Helps with:
-Making red blood cells.
-Blood circulation
-Arthritis
-relieveing joint stiffness and joint pain
-Keeping nerve cells healthy.
-Support your immune system.
-Forming collagen, a protein that helps make up your bones and tissues.
-Protect cells from damage.
-Absorb iron into your body.
-Turn sugar into energy.