Iolite Natural 5X7mm Drop - 8 Inch Tools & Supplies Emerald is one of the

Emerald is one of the four “precious” gemstones

in colors from light green to yellow green to olive

Robles is a light

currently believed to be due to the presence of a copper-based mineral such as Malachite or Azurite

creating a beautiful blend of pink and green in mottled patterns

Iolite Natural 5X7mm Drop - 8 Inch Tools & Supplies Emerald is one of theIolite 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.