Travertine quad natural stone coaster - It consists of paintable natural stone, Hobby Painting, Coaster Natural Travertine stone, Calcium Carbonate, that is, CaCO3, and is a type of rock with carbonate paste.

Travertine occurs around hot springs and usually in caves.

Today, when it comes to natural stone, it is also known as marble.

The most popular feature that distinguishes travertine from marble is that it has pores just like perforated white cheese.

These pores and cavities in travertines are caused by the gases that exist in them during their natural formation and then come out.