Iolite 10mm Faceted Round - 15-16 Inch - CLEARANCE featured_04252024 Selenite is a crystal formed

Selenite is a crystal formed from the mineral gypsum

often called the "Super Seven" or "Melody Stone" contains Amethyst

iron or manganese impurities within the stone

Sage Agate forms in volcanish ash

It displays a visual property called “pleochroism

Iolite 10mm Faceted Round - 15-16 Inch - CLEARANCE featured_04252024 Selenite is a crystal formedIolite 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.