8mm Beaded Bracelet.  Black Banded Agate is a beautiful variety of Agate showing black and white banding. It is a stone that promotes yin/yang balance. Black Banded is an ideal stone to use when faced with change or new beginnings as it will help you see things with a fresh perspective. Black banded agate helps transmute negative energy from the mental andphysical body. It balances the root chakra and brings positivity to negative situations. Black banded agate is also known to boost endurance. Carry a piece of Black Banded Agate with you in preparation for a marathon or any activity that might require perseverance.