Composition: Chalcedony is a variety of Quartz, Silicon Dioxide
Hardness: 7

The name Chalcedony (pronounced "cal-sed-nee") comes from an ancient Greek city of Asia Minor, known as Chalcedon.

Metaphysical Properties: Chalcedony was a sacred stone of the Native Americans, who used it to promote stability during ceremonial activities. Balances energies of mind, body, emotions, and spirit. Symbolizes brotherhood, benevolence and generosity. Group communication.

Corresponding Chakra: Throat
Corresponding Astrological Signs: Cancer, Sagittarius