Place an order for Green Aventurine With Arrowheads Bracelets at Natural Agate. To find an arrowhead is often associated with good luck. Superstitions surrounding this arrowhead is focused on the origin of this weapon. Some arrowheads have been made from wonderful stone such as quartz. In ancient Greece the arrowhead was made of bronze and they were often triangular in shape. It symbolized courage, strength, and protection. Native Americans believed the arrowhead could deflect negative energy and allow the wearer to absorb their enemy`s power.