Bloody Iolite 8mm Round - 15-16 Inch Cube Faceted A Grade Banded Green is the most common

Green is the most common color for Aventurine

bluish green

and turquoise is a leftover mineral from these practices

Discovered in Greenland in the late 1890's

Petrified Wood Agate is formed from the petrifaction process of primeval trees over the course of many years

Bloody Iolite 8mm Round - 15-16 Inch Cube Faceted A Grade Banded Green is the most commonIolite 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.