The Base Chakra is located at the base of the spine, and is the foundation of physical and spiritual energy for the body. It is the place where your physical and spiritual energy connect. Black stones are a powerful tool for balancing this chakra.Obsidian is most commonly jet black, but can be dark brown, gray or gray-green. Inclusions or trace elements and refraction of microscopic gas bubbles can create rare colors, markings, and sheens. The name comes from the Latin obsidianus, an erroneous transcription of obsianus, meaning “the stone of Obsius,” the prominent Roman who discovered it.Obsidian is an ideal stone for those seeking to gain a new perspective or resolve a life issue. It can provide essential grounding, connecting the base of the spine to the heart of the earth. It is highly protective, shielding one from negativity in the environment, from others, and from within the self.