BASALT SLABS AND TILES
Basalt which is also called Silbatta in Pakistan, is a dark fine-grained volcanic rock that sometimes displays a columnar structure, typically composed largely of plagioclase with pyroxene and olivine. Used both indoors and outdoors, it is available in a wide variety of finishes, some of them include polished, honed, saw cut, bush hammered, flamed e.t.c.