Glass is an inorganic amorphous material, and its main component is silicon dioxide. It is transparent, hard and easy to process, and is often used to make windows, containers and decorations. Agate is a kind of precious stone, and its main component is microcrystalline silicon dioxide. It usually presents colorful colors and textures and has a high degree of luster and hardness. Agate is often used to make jewelry and handicrafts. In terms of material, glass is inorganic and amorphous, while agate is a gem. From the appearance, glass is usually transparent or translucent, while agate has unique color and texture.