Iolite 6mm Round A Grade - 15-16 Inch PARTTWOlabordaysale4dollar but is prized

but is prized

is a deep blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color

Sardonyx has a Sard base

These cabochons are all unique and vary in colors and patterns

Yellow Opal is transparent to opaque

Iolite 6mm Round A Grade - 15-16 Inch PARTTWOlabordaysale4dollar but is prizedIolite 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.