I got this shining Black Tourmaline for Mary my youngest sister for her upcoming trip to Laos since the country energy isn't that good. I get her to wear now especially to work since she has a quite unbalance and whining lady manager. Use and purpose on Black Tourmaline. Wear this crystal for protection against moaners, whiners, complaining neighbors or emotional vampires who burden you with their problems but do nothing to improve their situations. [Eason, 204] In the workplace, hold Black Tourmaline for a few minutes when you need to wake up your mind or when you need full concentration. It provides an excellent shield against environmental pollutants, electromagnetic smog, and radiation associated with cell phones, computers, and other electronic equipment . [Eason, 204][Hall, 298] It is a professional support stone for miners and telephone workers