SeliStone(Volga Blue)^TM is the original quartz-based engineered Stone(Volga Blue) primarily used for commercial and residential applications. SeliStone(Volga Blue)^TM is 93% crushed quartz, one of nature's hardest minerals. The quartz is combined with high-quality polymer resins and pigments and then compacted under intense vibration, vacuum, and pressure into dense, non-porous Slabs(G682). The Slabs(G682) are post cured, gauged to precise thickness, and polished to an enduring shine. SeliStone(Volga Blue)^TM is tough enough for the wear and tear on just about any interior surface, and beautiful enough for every architectural and decorating scheme.