Banded Agate

Called the stone of self-protection and strength. It assists with grounding and is said to surround the holder with white light.  It was used by the Ancients on the breastplates of armor to give warriors strength and make them victorious in battle.  Energetically, agate gives you courage, emotional strength, self-confidence, and dispels fears.  Another property is the balancing of yin/yang energy.