Protection & Grounding - Black Tourmaline & Rainbow Moonstone set in sterling silver. THE ULTIMATE intuitive protector, black tourmaline is known for its ability to shield and deflect, sending the negativity back out into the universe to be reabsorbed by the light. Moonstone is fabulous for seeing the unseen, moving stealth-ly through any places where danger may be lurking so one may quickly choose a higher path. One of my personal favorites!