Cleaning Marble Tile and Grout
The first job was to give the floor a general clean using a dilution of Tile Doctor Pro-Clean which was left to dwell on the Tile and Grout for a short while before being worked in with a rotary machine fitted with a scrubbing pad and a stiff hand brushes along the grout lines. The floor was then washed down with clean water to remove the soiled cleaning solution with the liquids being removed using a wet vacuum.Burnishing and Polishing Marble Tile
To restore the original finish and remove the scratches the floor needed to be cut back using a set of diamond encrusted burnishing pads. The pads come in a set of four and you start with the coarse pad and a little water and then move on to the Medium, Fine and Very fine pads at which point the surface looks immaculate and polished. The next task was to protect the floor and bring up the appearance even further by applying Tile Doctor Shine Powder which is polished into the floor using a buffing pad; the powder add a really deep finish to the appearance of the Marble and hardens on the surface to provide durable surface protection.Hopefully you can appreciate the difference in the Marble from the photographs; it was a tricky subject to capture due to the lighting; however I can tell you the customer was amazed by the finish.
Source: Marble Cleaning and Polishing Advice