Iolite 8mm Round - Large Hole Beads 20210930-1007 Star Cut & Double Hearted but differ in chemical composition

but differ in chemical composition

check out The Identification of Zachery Treated Turquoise

The addition of the rhodium plating not only protects these from oxidation but also highlights the Widmanstätten pattern

meaning it becomes magnetically charged from heat or friction

the colors are naturally occurring

Iolite 8mm Round - Large Hole Beads 20210930-1007 Star Cut & Double Hearted but differ in chemical compositionIolite 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.