Blue Gold Chatoyant Hawk's Eye (Tiger Eye)
5" x 2" x 2.5" Triangular cut, one side polished.
Blue Tiger's Eye
Also known as Hawk's Eye (or Falcon's Eye). In the Middle Ages blue tiger eye was worn as an amulet against witchcraft, demons and the evil eye. It remains a powerful protection stone. Blue tiger eye is calming and de-stressing, can help us to see our life plan and makes us less prone to mood fluctuations.
Tiger’s eye is a quartz, which displays chatoyancy, or a “cat’s eye” effect. For more than 100 years it has been believed to form when parallel veins of crocidolite (blue asbestos) are metamorphically altered to iron oxides (giving it its gold color), which is then replaced by quartz. In the case of blue tiger’s eye (also know as hawk’s eye or falcon’s eye), the crocidolite is not altered before the quartz replacement, and retains its original blue color.
In 2003, Heaney and Fisher argued that tiger's eye is not a replacement mineral but "classically exemplifies synchronous mineral growth through a crack-seal vein-filling process." However, you’ll find that most mineralogy books stick to the original explanation. Both varieties are very popular in jewelery making and gemstone carving.