1 ½” H x 8 ¼” W x 1 ½” D – Black Tourmaline is the ultimate protective stone. Not only will it protect you and your aura from negativity and psychic attack, but it will return the negative energy to the sender. Placing a piece of black tourmaline near doors and windows helps keep your home energetically safe. This particular piece is extremely powerful and will cleanse your entire home. It is also a wonderful grounding stone and can be used any time you are feeling disconnected.