Iolite 4mm Faceted Coin 15-16 Inch Mexican Cacoxenite is the trade name

Cacoxenite is the trade name for this naturally occurring blend of seven stone types

clear to milky white to dark green

limestone and copper

the mineral was named for French paleontologist Eugene Durmortier (1803-1873)

mined since 4000 BCE

Iolite 4mm Faceted Coin 15-16 Inch Mexican Cacoxenite is the trade nameIolite most commonly occurs in shades of blue 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.