Black basalt Black basalt, Black basalt tile, Black basalt cube,Black basalt Large supply, good price and superior quality ! 1. 1. ... OriginFujian, ChinaStone FormBlocks, Slabs (Cut to size), TilesColorblackFinishingPolished, Honed, Flamed, Sandblasted, Rough hammered, Bush hammered, Rough picked, chiselled, etc ... 24"/36',16"*16",18*18",20"*20",24*24" slab:24"up*48'up to 28" *78"upusageflagstone ,stair ...