Clear quartz is considered by many to be the best all purpose crystal or stone. It is also particularly useful for meditation and when working to contact or align with one's higher self.  Clear quartz crystal is the universal stone. Everyone should have one! It corresponds to all zodiac signs, and is a pure and powerful energy source. It receives, activates, stores, transmits, and amplifies energy. Stimulates brain functions and activates all levels of consciousness. Excellent for meditation. Brings harmony to the soul.