Vintage Raw Black Tourmaline Oval Silver PendantRaw Black Tourmaline in a Vintage designed Sterling Silver setting. By wearing a gemstone necklace, you keep the energy of the stone near the body, especially in the heart area, for maximum benefit. By wearing a gemstone necklace, you keep the energy of the stone near the body, especially in the heart area, for maximum benefit. Black Tourmaline is considered to be a powerfully protective crystal, a grounding stone, one of the few that protects and