Agate Book Ends, A variegated class of chalcedony, usually with colored bands or other markings, some with no patterns, Metaphysical Beliefs, Sacred to Native Americans, promoting stability in ceremonial activities, balances of body, mind, emotions and spirit. Encourages brotherhood, balances yin yang energy, stabilizes and cleans aura, transmutes and eliminates negativity, develops awareness skills of self environment, produces inspirations from and connections to spiritual worlds. These beatuiful agate bookends from brazil, are a wonderful addition to any office or study. Astrological sign of Agate is Gemini. Number Vibration is 7.