Volcanic Lava Stones are especially good for Building stone, fireplaces, stairs, countertops, sinks, monuments, pool coping, sills, ornamental stone, mosaic, interior, exterior, wall, floor, paving and other design projects. They can be processed into Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge and so on.