... basalt, slate etc.Color grey, dark grey, white, light grey, black, yellow, red, green etcStone Form column, palisade, kerbstone,paversFinishing bush ... -hammered, rough picked, fine picked, pineapple, cleft, natural split,flamed,polished, honed, mushroom, sandblast,chiseled, brushed, non-laminated, bull ... to visit our company and factory at your convenience. black natural stone flamed curbstone