Labradorite Natural 4x6mm Rondelle AAA Grade - 15-16 Inch 6mm Iron gives them blue

Iron gives them blue

also known as the Stone Age

It is made up of Calcite or Calcium Carbonate

However in some regions

including Moonstone

Labradorite Natural 4x6mm Rondelle AAA Grade - 15-16 Inch 6mm Iron gives them blueLabradorite 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 to 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.