Hainan Black Basalt is a dark gray to black porous magmatic rock quarried in China. This stone is especially good for Pavers, veneer, quoins, coping/caps, curbs, sills/lintels, drain grates, columns, slabs, cobblestone and other design projects. It also called Hainan Basalt,Hainan Black Lava Stone,Hainan Black Lavastone,Hainan Black Travertine,Haikou Basalt,Haikou Black Basalt,in China stone market:海南黑色玄武岩(Hǎinán hēisè xuánwǔyán),海南黑玄武岩(Hǎinán hēi xuánwǔyán) . Hainan Black Basalt can be processed into Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled and so on.