... Cheap Price 4)Fast Delivery Natural Basalt Stone Basalt has two color tones as Grey and Dark. And basalt dark is more widely ... GreySurface Finish:Honed,Flamed,Bush Hammered,Chiseled, Pine Apple,Groove and Natural Split.Common Size:Panels: 300X300,300X600,600x600,etc.Stair Steps ... ,Eastern Asia,Middle East,etcAdvantage1) Competitive price among black natural stone2) Good water and sound absoption