Honing is the process of smoothing the stone with the use of abrasives. Although not as aggressive as grinding, it does require the use of water, and can also be quite messy. Honing is performed to remove scratches, and will not remove lippage (uneven tiles). It can, however, round the edges of the stone, giving a smoother finish to the edge. The honing process is usually achieved with the use of diamond abrasives, although some contractors prefer silicon-carbide bricks or screens. Which abrasive is used is not as important as the skill level
of the craftsmen.
Honing can leave a stone floor with very little shine, although some stones will acquire a satin-like luster at very high hones.
Generally, grinding is what takes place using any grit of 60 or below; honing begins at 120 and proceeds upwards. A skilled craftsman will
generally stop at a 400 or 600 on marble before polishing.