Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Cantera Opal This topaz is found in

This topaz is found in the cavities of a pegmatite

and because its hardness has made the stone perfect for beads and cabochons

Iolite most commonly occurs in shades of blue to gray

Crazy Lace Agate is a banded Chalcedony that naturally occurs as golden brown with layers of pink

It contains inclusions such as copper and iron

Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Cantera Opal This topaz is found 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.