meerschaum

A fine, compact, usually white claylike mineral of hydrous magnesium silicate, H₄Mg₂Si₃O₁₀, found in the Mediterranean area and used in fashioning tobacco pipes and as a building stone.

A tobacco pipe with a bowl made of this mineral.

A hydrated silicate of magnesium, occurring in fine white clay-like masses, which when dry will float on water; sepiolite.

A pipe made from this substance.

A fine white claylike mineral, soft, and light enough when in dry masses to float in water. It is a hydrous silicate of magnesia, and is obtained chiefly in Asia Minor. It is manufacturd into tobacco pipes, cigar holders, etc. Also called sepiolite.

A tobacco pipe made of this mineral; a meerschaum pipe.

A soft white mineral, chiefly used for smoking-pipes and cigar holders.

A smoking-pipe made from meerschaum.

a pipe having a bowl made of meerschaum

a white clayey mineral