Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Cantera Opal the third to hardest common

the third to hardest common natural gemstone

Tourmalated Quartz is clear Quartz that has formed with Black Tourmaline

Iolite most commonly occurs in shades of blue to gray

Ancient Egyptians sometimes buried their dead with amulets of Jasper for safe passage into the afterlife

This topaz is found in the cavities of a pegmatite

Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Cantera Opal the third to hardest commonIolite 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.