Chinese Bluestone (Blue limestone) 1)Color:Grey,Black 2)Finish:Honed,Polished,flamed, Split, tumbled 3)Good price+Fast delive Material Type: Bluestone Tile,Blue Limestone,Limestone Tile ... , 300x600, 600x600mm, 3)400x400mm, 500x500mm, thickness: 1cm, 2cm, 3cm, etc. Chinese Bluestone, blue limestone, Honed bluestone, Paver