Known to mineralogists as cordierite, iolite’s name is derived from the Greek word ‘”ios”, meaning violet. Strongly trichroic, meaning a gem exhibits 3 distinct colors when viewed along its different optic axes, iolite occurs in cool tones of bluish violet to violet to blue. Seafaring Vikings even used iolite as a navigation aid because of its polarizing abilities! This unique gemstone is designated for the 21st wedding anniversary.


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