Considered a stone of purification and self-knowledge. It favors introspection and mental and spiritual balance. It is usually associated with the 5th and 6th chakra. Power and balance communication, expression and intuition. Helps release tension and calm the mind. It is often used to release blocks from the past as it has the potential to come into contact with the subconscious.

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This stone can be found in: Afghanistan, Chile, USA, Russia, Argentina, Italy and Egypt.