Stone Name: Black Obsidian Origin: India ASTROLOGICAL SIGN: Aries, Capricorn, Sagittarius, ScorpioCHAKRA: Root ChakraPLANETS: SaturnMOHS HARDNESS: 5 to 5.5 HardnessAFFIRMATION: I gently release negative energy within and around meNUMERICAL VIBRATION: 3 Black Obsidian Black Obsidian is a powerful and protective stone....