Iolite 2x4mm Thin Rondelle Faceted AA Grade - 15-16 Inch Teardrop Faceted It was named from the

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

also known as Nacre

With the possible exception of the horizon meeting the bright blue sky on a perfect summer day

There are 37 different mica minerals

Iolite 2x4mm Thin Rondelle Faceted AA Grade - 15-16 Inch Teardrop Faceted It was named from 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.