Black Tourmaline is a powerful stone for protection. It is also a good crystal to use for grounding. Black Tourmaline promotes positive attitudes, good luck & happiness, regardless of the circumstances you may find yourself in (or almost any situation), Black Tourmaline can also be found in very dark blue, but it is nearly always black in color. This crystal can help you to have a positive mind-set and is used by professional healers because of its powerful properties.