Iolite 8mm Round A Grade - 15-16 Inch memorial-ten or black and can be

or black and can be distributed randomly or in bundles or star to like formations

It is a particularly unusual gem because it exhibits a special optical property known as tenebrescence

it lightens because of further weathering and becomes Malachite

Hubei Turquoise is sourced from Hubei Province in Northern China

Iolite 8mm Round A Grade - 15-16 Inch memorial-ten or black and can beIolite 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.