Iolite is a type of crystal that ranges in color from pale blue to violet. It is transparent to translucent, and has a vitreous luster. Iolite gets its name from the Greek word for violet, which is Ios.
Iolite has been used since ancient times and was prized by the Vikings for its ability to help them determine the position of the sun on overcast days. Iolite is still coveted today for its beauty, and is also believed by some to have metaphysical properties.
Iolite is said to promote wisdom, honesty, and self-confidence. It is also thought to help with decision making, and is a popular crystal for travelers as it is said to protect against disorientation. Iolite can be found in Brazil, Sri Lanka, Madagascar, and India.