Iolite 7mm Cube Table Cut Bead - 15-16 Inch - CLEARANCE 8-Inch Trace amounts of iron can

Trace amounts of iron can also affect the hue

yellow and brown

sold a piece of Green Tourmaline to Tiffany & Co

Diamonds actually form at high temperatures and pressures that occur in Earth's mantle about 100 miles below Earth's surface

remote parts of the globe

Iolite 7mm Cube Table Cut Bead - 15-16 Inch - CLEARANCE 8-Inch Trace amounts of iron canIolite 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.