Quartz Crystal

Chemical Composition: SiO2, silcon dioxide
Hardness: 7

Clear quartz crystal is the universal stone. It 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. Opens the Crown chakra. Corresponds to all astrological signs.