Black Tourmaline

      Black tourmaline, also called Schorl, belongs to a family of aluminum borosilicates mixed with iron, magnesium, or other various metals

      Black Tourmaline is believed to be a powerful grounding stone that promotes a sense of power and self confidence.

      Black tourmaline is associated with the Root chakra.

      Chemical Formula: NaFe3 (Al, Fe) 6 [(OH, F) 4 (BO3) 2Si6O18]

      Hardness: 7-7.5
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