They do not ghost. At all. Having said that, if you do not clean them (warm water under the tap and then allow to dry) you might get residual crud.

Do meerschaum pipes need to rest?

Unlike a briar pipe, meerschaums do not need long periods of rest between smokes, and can safely be smoked multiple times in a day.

What does meerschaum smell like?

The actual material density of meerschaum feels something like a soapy light plastic, but is in fact the result of the fossilization of tiny sea creatures shells its hardness is ranked 2 on the mohs scale of mineral hardness. It has no distinct smell, and is generally identifiable as a white to cream colored material.