Shop online Black Tourmaline Palm Stone at Anam Agate. Black Tourmaline crystal is a powerful stone for protection against negative energy of all kinds including psychic protection and EMF protection. It is also a strong spiritual grounding stone. Black Tourmaline is a protective stone which repels and blocks negative energies and psychic attack. Black Tourmaline will cleanse, purify, and transform dense energy into a lighter vibration. A popular metaphysical stone, Black Tourmaline is also great for grounding. Palm stones are polished oval stones that can be used for crystal healing, meditation and many other esoteric healing practices. The reason that palm stones are called `palm stones` is very simple: they fit perfectly into the palm of your hand. Order online as soon as possible.