Natural Agate Stone Slice Decor

This is a polished natural agate slab. Agates are a form of chalcedony, which is a microcrystalline variety of quartz. Key features include: Formation: Agates typically form in cavities (vesicles) within volcanic rocks, created by trapped gas bubbles in cooling lava. Banding: The distinctive concentric bands are formed as silica-rich fluids precipitate in layers over millions of years. Composition: The primary material is silicon dioxide, with various trace elements contributing to the wide range of colors and patterns.