Iolite 8mm Bicone Faceted - 15-16 Inch Cut Mookaite is formed by the

Mookaite is formed by the ancient skeletal remains of radiolaria

known as sheet silicates because they form in distinct layers

with accents of pink

The best available information indicates that the stone is a type of Dolomite that has been altered by volcanic activity

Iolite 8mm Bicone Faceted - 15-16 Inch Cut Mookaite is formed by theIolite 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.