Iolite with Flash 6mm Round - 15-16 Inch hps_03122026 deep-blue copper mineral produced by

deep-blue copper mineral produced by weathering of copper ore deposits

and features dark manganese dendrites throughout

orange and yellow colors in which it occurs

It was discovered in Labrador

It may also contain rainbow to colored or sparkling inclusions

Iolite with Flash 6mm Round - 15-16 Inch hps_03122026 deep-blue copper mineral produced byIolite most commonly occurs in shades of blue to gray, violet or indigo. It displays a visual property called pleochroism, which means that it can appear to be different colors as it shifts in the light. According to Norse legend, Viking explorers used thin pieces of Iolite as the worlds first polarizing lens to help them determine the exact location of the sun for navigation.