Marble is crystallized limestone that is mined in quarries. The stone has been subjected to intense heat or pressure that rearranges its molecular structure, a process known as metamorphism, resulting in a material that can be polished to a high sheen. White marble comes from very pure limestone. A beautiful white marble board is the perfect addition to a dream kitchen. Dense material absorbs heat and feels cool to the touch, making it ideal for serving deli meats, sushi, cheese and other foods that perish quickly.