Black Obsidian is one of the best stones for protection. It is a powerful cleanser of negative energy. Black Obsidian helps to remove negativity from your environment, and also from your emotions and mind. Because of its protection properties, Black Obsidian cleanses your mind and teaches you emotional strength. It stimulates the Root Chakra & is especially helpful for grounding you, spiritually and emotionally. Black Obsidian also helps to connect you to the energy of the Earth, centering you and aligning you with the spirit of nature. Because of its ability to deflect negativity, it is helpful for clearing energy blockages and aids in bringing truth to the surface to be revealed. Approximately 1 inch each.