Iolite 4mm Round A Grade - 15-16 Inch australian giving some rubies a slightly

giving some rubies a slightly brownish or purplish tint

red jasper and black hematite

Australian Green Opal is a variety of Common Opal which is a mixture of Opal and nontronite

red and magenta hues

Rainbow Obsidian earned its name from the chatoyant

Iolite 4mm Round A Grade - 15-16 Inch australian giving some rubies a slightlyIolite 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.