Black Coloured Slate Stone requires less maintenance. The Stone has various surfaces finishing such as natural, calibrated, honed, polished, brushed, leather finish and flamed. The Stone has length ranging from 60 to 150 cm, width ranging from 30 to 60 cm and thickness ranging from 20 and 50 mm. The Black Coloured Slate Stone has various edges such as machine cut, chiseled and hand cut, chamfer, bull nosed.