Iolite 7x8mm Faceted Round Nugget - 15-16 Inch 20210727 translucent stone

translucent stone

As the stone catches the light

and colors that include purples

It was named from the Latin "Thule" - which was a term used by ancient Greeks and Romans to refer to the then-little-known lands to the north or present day Scandinavia

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

Iolite 7x8mm Faceted Round Nugget - 15-16 Inch 20210727 translucent stoneIolite 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.