Labradorite 8mm Coin Faceted - 15-16 Inch Moroccan Agate Apatite can exhibit chatoyancy —

Apatite can exhibit chatoyancy — an uncommon optical phenomenon in some stones that resembles the light reflection of a cat’s eye

a 19th-century German professor of chemistry and mineralogy

many people believe that diamonds are formed from coal

transparent stone

Labradorite 8mm Coin Faceted - 15-16 Inch Moroccan Agate Apatite can exhibit chatoyancy —Labradorite 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.