TRAVERTINE - A HOLY STONE
Travertine contains holes but don't worry - they are meant to be there! The characteristic holes unique to travertine have been created by trapped gases such as carbon dioxide that have leaked away over time.
The holes in travertine distinguish it from other types of stone e.g. marble. Whilst not all travertine contains holes it is certainly a well known and loved characteristic of the stone. In some instances the holes may be be better filled; this can be done at the factory before dispatch or alternatively grouted over after the stone has been laid.
The best quality travertines have small holes that do not interfere with the flexural strength of the stone. Travertine that has lots of big holes is lower quality (i.e. lower strength, density & durability) so beware; sometimes this type of stone is described as "rustic"!!!!