Black tourmaline is a powerful crystal when working with chakras, it can realign the chakras, balancing the body from crown to root. This stone will bring you back to earth. Black tourmaline is a crystal like Selenite where you never need to clean it. It is a powerhouse negativity sucker upper as well. It will clean a room pretty quickly, especially when paired with Selenite and/or rose quartz. Putting one of these crystals under your pillow will cleanse your body while you sleep, as well as the room where you are sleeping.