Iolite 6mm Round Faceted - Large Hole Beads JUL4-HP Rutilated Quartz is a silicon

Rutilated Quartz is a silicon dioxide mineral with unique needle-like inclusions of Rutile

Opals are hydrated amorphous forms of silica

ranges in color from light to dark green

Jade has been used for tens of thousands of years

Iolite 6mm Round Faceted - Large Hole Beads JUL4-HP Rutilated Quartz is a siliconIolite 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.