Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Cantera Opal Iolite most commonly occurs in

Iolite most commonly occurs in shades of blue to gray

This stone is relatively soft

but will not be chemically treated or altered

This topaz is found in the cavities of a pegmatite

" and variants of the name in other languages

Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Cantera Opal Iolite most commonly occurs inIolite 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.