Iolite 2x4mm Thin Rondelle Faceted AA Grade - 15-16 Inch New February 2022 rather a feldspar-rich igneous rock

rather a feldspar-rich igneous rock

A mixture of hydrocarbons

is a calcium aluminium hydroxy sorosilicate belonging to the epidote group of minerals

also known as the Stone Age

Iolite 2x4mm Thin Rondelle Faceted AA Grade - 15-16 Inch New February 2022 rather a feldspar-rich igneous rockIolite 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.