Marble is a certain type of rock that has been changed from it’s original composition through the effects of intense pressure and heat. Depending on what kind of minerals are in the mix, different colors will emerge. Although marble is beautiful and can add a dramatic aspect to your décor, there are a few things to consider…Marble is resistant to heat, it will discolor if heat is directly applied through a hot pan. In addition, it can stain and spills must be wiped up as soon as possible.