... :Italy 4.Color:Grey 5.Surface finishing:Polish Name:Smoke Quartz(Yan Shui Jing)Classification:SemipreciousPlace of origin:ItalyColor:GreySurface finishing ... , Dupont, French edge,laminated, non-laminated,etcGlossiness: Flatness: Form:Block,Slab,Strip,CTS,Tile,Composite,Mosaic,Special shapeSlab:16~17mm thk ... .,17~18mm thk.,19~20mm thk.,25mm up thk. Smoke Quartz semiprecious slab