Most of the travertine which you see online or displayed throughout retail locations such as flooring companies, pool builders, home improvement companies, etc. is by default cross cut. This refers to the default way of cutting the travertine blocks which are extracted from the quarry. In order to produce vein cut travertine, the travertine blocks are rotated and the cuts take place across the vein. Always think of it as cutting a tree. You can cut a tree vertically or horizontally. If you cut it vertically, the veins come out, same with Travertine.