Labradorite is a spectacularly iridescent mineral which exhibits different colors depending on the angle of the viewer. Artists hand polish these sculpted hearts, highlighting areas of maximum color. Labradorescence is not the superficial coloring of the stone, but a property of the light reflected by a surface within. Madagascar. Approx 2.5" x 2.75" x 1", 5 oz. Standing by the magic of photography.