IoliteCongratulations! You have discovered an Iolite Gemstone! The name Iolite comes from the Greek word for violet. It has been called “water-sapphire” and “Vikings’ Compass” for its usefulness in determining the direction of the sun on overcast days, which is what the Vikings used it for. Iolite varies in color from sapphire blue to blue violet to yellowish gray to light blue as the light angle changes. It is abundantly found in many places including Brazil, Burma, Canada, and India.