If you love the beautiful rich cobalt blue of tanzanite and sapphire, Iolite is the perfect gemstone for you. Iolite has the blue and purple tones of tanzanite at an affordable price.
It's name comes from the Greek "Ios" (violet) and "lithos" (stone). Brazil, Sri Lanka and India are the primary sources of Iolite.
Iolite is also called cordierite and dichroite along with the misleading name "water sapphire". Weighing in at 7-7.5 on the Mohs scale, Iolite is suitable for all jewelry.