Black tourmaline is among the top 3 most protective stones among all minerals in the Materia Medica.  It promotes the ability to tolerate the negativity we encounter in the world, including our relationships and environmental pollutants. Tourmaline helps draw out all types of stagnation and/ or poisons from the constitutional level out of the body. It's a great harmonizer by drawing attention to issues that need work, to ultimately resolve them and move in a harmonious fashion. It promotes self knowledge, balances the chakras, aids in psychic development and astral projection, and most importantly it protects us from evil curses, absorbing negativity and repelling it.

Fun fact: Tourmaline is similar to reishi and maitaki mushrooms in its effect on the immune system. In the early days of acupuncture, thin crystals of tourmaline were used as needles.