Bloody Iolite 10mm Round A Grade - 15-16 Inch Zoisite though it is referenced as

though it is referenced as a highly revered stone in much older Inuit tribal legends

caused by impurities

which form fragmented patterns throughout the stone

This material dates back 29 million years and has been used in early civilizations as tools similar to obsidian

Bloody Iolite 10mm Round A Grade - 15-16 Inch Zoisite though it is referenced asIolite 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.