Engineered stone is a composite material made of crushed stone(93%) bound together by an adhesive(7%) mostly polymer resin. The two common stones used in producing these products are marbles and quartz. The application of these products depends on the original stone used. For engineered marbles the most common application is indoor flooring and walls, while the quartz based product is used primarily for kitchen counter tops.
Engineered stone is less porous, more flexible, and harder than many types of natural stone. Since it has a uniform internal structure, it does not have hidden cracks or flaws that may exist in natural stone.