Fire agate is a unique gemstone known for its vibrant colors and iridescent patterns. It is a variety of agate, a type of chalcedony, and is formed from silica deposits in volcanic rock. The stone often displays a play of colors, resembling flames, which is where it gets its name. This gemstone is primarily found in Mexico and the United States, particularly in regions with volcanic activity. Fire agate is popular among collectors and jewelry makers due to its striking appearance and the way it catches light, making each piece truly one-of-a-kind.