Black Tourmaline is an incredibly high-frequency stone. It’s one of the most well known stones for grounding, protection, and purification. It can help to protect and purify your energy, and can even offer protection and grounding at the level of your space or home. It’s often referred to as “the shamans stone”, as it’s used for protection during rituals. It’s especially a great stone for anyone doing energy work to keep them grounded and protected.