Iolite is the gem variety of the mineral Cordierite. It describes the transparent to translucent form of Cordierite, and it has recently become a popular gemstone. Iolite can be light to deep blue, and usually has a purplish tinge to it. Deeper colored stones are more valuable.
Iolite is both a third eye chakra and a throat chakra stone. It aids in opening your third eye and utilising its abilities. Often times, when your third eye is opened, you may initially battle with headaches, but iolite can be used to relieve these.