Definition
'Chatoyant' describes a gem or other material that exhibits a changeable luster or optical reflectance effect, like a cat's eye 🐱. Think of tiger's eye stone or certain types of silk. The light seems to ripple or move across the surface as the viewing angle changes. This is different from a simple shiny surface. 'Chatoyant' materials are highly valued for their unique visual properties. The appearance changes depending on the light.