Scientific Properties: Stone Type/Family: A member of the Tourmaline family, Silicates class Category: Silicate mineral group Chemical formula: (Ca,K,Na,[])(Al,Fe,Li,Mg,Mn)3(Al,Cr, Fe,V)6 (BO3)3(Si,Al,B)6O18(OH,F)4 Crystal system: Trigonal Cleavage: Indistinct Fracture: Uneven, small conchoidal, brittle Mohs scale hardness: 7-7.5 | | | Metaphysical Guide: Protection, Grounding, Calming Primary Chakra: All Astrological sign(s): Capricorn Vibration: Number 3 & 4 Black Tourmaline is a protective stone which repels and blocks negative energies and psychic attack. Black Tourmaline also aids in the removal of negative energies within a person or a space. Black Tourmaline will cleanse, purify, and transform dense energy into a lighter vibration. |