This gemstone is incredibly unique with its chatoyancy effect, which causes a band of light to move across the surface of the stone. The cat's eye effect is due to the reflection of light off of parallel inclusions within the stone. The color of the stone can vary from yellow to green to brown, and the intensity of the chatoyancy can also vary. Cat's eye stones are often used in jewelry, and their physical properties make them not only aesthetically pleasing but also fascinating to observe.
