Labradorite 3mm Round (AAA Grade) 15-16 Inch Hematite Viking explorers used thin pieces

Viking explorers used thin pieces of Iolite as the world’s first polarizing lens to help them determine the exact location of the sun for navigation

often occurring with inclusions of white

They are all varieties of the mineral corundum

madre xacao or madre de cacao

Labradorite 3mm Round (AAA Grade) 15-16 Inch Hematite Viking explorers used thin piecesLabradorite is remarkable for the way its aggregate layers refract light, creating iridescent flashes of blue, gold, pale green or copper red. This effect is known as labradorescence, taking its name from the stone. Labradorite is usually gray green, dark gray, light gray or black. It was discovered in Labrador, Canada in 1770 and named for the area, though it is referenced as a highly revered stone in much older Inuit tribal legends.