Travertine stone is a natural stone like Marble, Granite, Onyx, Limestone, etc. The fundamental differences between Travertine and other natural stones stems from the way they are formed. The stone have very different properties such as the hardness of the stone and the appearance. Travertine is formed in hot springs and limestone caves. Travertine is not the same as Granite, Marble or Limestone which falls in the metamorphic stone category. fundamental characteristics of Travertine stone are the holes within the stone which are caused by carbon dioxide escape in the mixture. Metamorphic stone is a stone that has undergone changes through pressure and heat. This causes the stone to change or become granite through “metamorphosis” which often consists of crystals in the stone. Travertine has been used as a building material for many years. The most famous structure built with it is the Coliseum in Rome, But there are many buildings that Travertine used to build. One of the newest buildings that uses stone is the Getty Museum in Los Angeles, California. Travertine is one of the most commonly used stones in modern architecture. It is commonly used for facades, wall cladding, and flooring. Until the 1980s, Italy had a near-monopoly on the world travertine market; now significant supplies are quarried in mainly Iran, Turkey, Mexico, and Peru. Travertine is often visibly porous, giving it a more natural. Travertine’s colors are typically warm and range from the lightest white or cream to beige, gold, brown, and even red. Slight color and pattern variations between stones keep them from looking too uniform. Iranian travertine used to be commonplace in the UK around 10 years ago. If you can still find Iranian travertine in the UK and Other countries then it is generally denser and of a higher quality than different countries travertine.