Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Rhyolite12mm Impression Jasper comes in a

Impression Jasper comes in a variety of colors and possibly more names

Many of the earliest gem traders did not realize that these yellowish stones were actually different materials

tourmaline and other minerals

as well as red or brown either from oxidation or Hematite inclusions

Mexican Black and Red Zebra Jasper has banded and marbled patterns of translucent to opaque milky white

Iolite 4mm Microfaceted Round A Grade - 15-16 Inch Rhyolite12mm Impression Jasper comes in aIolite 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.