QUESTION

Difference between Granite, Travertine, and Porcleain Tile - I was just wondering the difference between the following kinds of tiles:
granite
travertine
porcelain

I believe travertine tiles tend to have ''holes'or 'imperfections' for effect. Do these need to be grouted? If it is not grouted what is the outcome? thanx

ANSWER

ANSWER - Granite is an igneous natural stone (cooled slowly in the deep upper part of the Earth’s crust) that has very high physical properties and is considered very durable in most cases.  There are products sold as granite that are not geologically true granites and don’t have as good of physical properties.

Travertine is a type of limestone sedimentary natural stone that is more porous and softer but can perform very well for residential applications. It is necessary to fill the holes so dirt doesn't collect, and seal the travertine to minimize staining.  Some travertines have less holes and are more dense than others.

Porcelain Ceramic Tile is a clay based material that is very durable and can exceed the physical properties of granite.  It is impervious but can stain, but it can have a glaze surface to make it more stain resistant.  With the current technology it can do a good job of imitating at natural stone look.

Good Luck!