The Black Tourmaline crystal stone is also one of the most powerful minerals for absorbing electromagnetic radiation, which makes it excellent for placing near computers and other electronics. An excellent addition to the Feng Shui of your home, Black Tourmaline crystal properties serve as a powerful energy protector that's magnified even more when placed in each of the four corners of a room or property. In the workplace, hold Black Tourmaline for a few minutes when you need to wake up your mind or when you need full concentration. Black Tourmaline is a stone of purification, cleansing the emotional body of negative thoughts, anxieties, anger or feelings of unworthiness. It helps in overcoming substance abuse, and releases any suicidal thoughts or self-harming tendencies. It may be beneficial in treating obsessive or compulsive behaviors, and in relinquishing chronic worry.