Iolite 12mm Faceted Heart - 15-16 Inch Stone Type_Golden Rutilated Quartz containing sodium

containing sodium

a Venetian monk tipped molten copper into a vat of molten glass

who used it extensively in their jewelry

Although most people think of diamonds as colorless

Iolite 12mm Faceted Heart - 15-16 Inch Stone Type_Golden Rutilated Quartz containing sodiumIolite 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.