A substance used to sand, scour, scrub, smooth or polishUsing abrasives to make the stone surface so smooth that it reflects light that results in a clear shine. More by removal of the original material. The amount of material removed is determined by the size of the abrasiveA substance used to sand, scour, scrub, smooth or polish by removal of the original material. The amount of material removed is determined by the size of the abrasive particles used (ie: grit) Sandpaper, scouring powders & steel wool are examples of abrasives. particles used (ie: grit) Sandpaper, scouring powders & steel wool are examples of abrasives.