Tanzanite vs Iolite: A Gemstone Comparison
Tanzanite and Iolite are two stunning blue-violet gemstones that can sometimes be mistaken for one another, especially in their deeper shades. Both show striking purplish-blue tones and strong pleochroism, but beyond that, they’re quite different in composition, formation, and value. Tanzanite is a relatively “new kid on the block,” discovered in the 1960s, yet it […]




