Offered is a polished, solid fiber-optic glass egg specimen featuring a light seafoam green translucency and a moving "cat's eye" chatoyant light line when rotated under direct light. Material: Synthetic Fiber-Optic Glass / Cat's Eye Glass Color: Light Seafoam / Pale Green Shape: Smooth Polished Egg / Ovoid Visual Effect: Strong optical chatoyancy (moving light streak) across the surface Condition: Pre-owned in solid overall condition with high-gloss surface polish. Please review photos/video stills for exact optical clarity, finish, and natural handheld scale.