Yes, marble tiles can be polished to a high shine. Polishing is the process of grinding and buffing the surface of the marble to remove any scratches, stains, or dullness, resulting in a glossy, reflective finish. Polishing can be done manually, using sandpaper and polishing compounds, or mechanically, using a polishing machine with diamond abrasive pads or polishes. A polished marble tile is not only more visually appealing but also more durable and resistant to stains and scratches.