7 Chakra on Black Tourmaline Sterling Silver Pendant PointSeven chakra stones above a termination of black tourmalinethe full spectrum grounded at its end. This pendant sets a graduated row of faceted stonesAmethyst, Iolite, Blue Topaz, Peridot, Citrine, Carnelian, and Garnetabove a point of black tourmaline, all in solid . 925 sterling silver. Black tourmaline is a complex boron silicate, Mohs 7 to 7. 5, one of the most electrically active minerals in the silicate class; its deep color comes from iron