4mm faceted IOLITE set in this delicate sterling drop on an 18" sterling chain. This lovely Violet, Periwinkle gemstone is known as the "Vikings Compass" because explorers used an Iolite lens that helped them determine the exact positioning of the sun while shielding their eyes from the glare. The name IOLITE comes from the Greek word 'IOS' meaning Violet. It has many spiritual properties that include boosting one's energy and intuitive gifts and is associated with the third eye and throat chakra for its ability to enhance one's vision. It may also help provide balance hope and tranquillity in trouble times.