Meerschaum is a type of mineral that is often used to make pipes. It is a soft, white, and porous material that is found in the ground in Turkey, Greece, and other parts of Europe. The term meerschaum is derived from the German word meaning 'sea foam'. The pipes made from meerschaum are prized for their unique color and texture, as well as their ability to absorb the flavor of the tobacco smoked in them.