IceStone is the world’s safest and most sustainable durable surface. Each slab is made of three ingredients: 100% recycled glass, Portland cement, and non-toxic pigments.over 10 million pounds of glass have been diverted from landfills since 2003 for the manufacture of Icestone. In addition to producing stunning, Cradle-to-Cradle Gold certified surfaces  (Cradle to Cradle is a certification system that rates a product’s safety, recycled content, recyclability, and manufacturing processes,IceStone is the first and only surface to achieve the Gold level of Cradle to Cradle certification.)made from 100 percent post- and pre-consumer glass, IceStone commits to the environment in other notable ways. The company operates in a day-lit factory in which grey water is recycled, the manufacturing process is low emission and even the once-petroleum-based machine lubricants have been replaced with soy-based ones.