Vintage Blue Labradorite Tear Drop Pendant with Chain

Selling a vintage necklace and pendant. Beautiful Tear Drop shaped blue Labradorite. This does have a stronger glow or flash on one side, more then the other. Pretty stone with white cloud like properties highlighted by the flash of the labradorite. Stone is encased in sterling silver. Round snack chain is included. Chain has two small imperfections. Chain approx 16” long. Pendant approx 1 3/4” x 5/8” Labradorite can display an iridescent optical effect (or schiller) known as labradorescence. Labradorite is most commonly known for its brilliant flashes of color called labradoressence caused by lamellar twinning inside the crystal. These twin lamellae structures are compatible at high temperatures, but not at low temperatures, resulting in separation and layering as the gemstone is formed.