If polished surfaces are used as flooring, restoration type processes become a normal part of regular maintenance. Kitchen areas are hostile environments. Stone used in the kitchen should be as impervious as possible. Hardness, loh absorption and easy wipe-ability are primary physical characteristics necessary for long life and utility. Bath Areas Stone inside showers and around tub areas should be smooth and low absorbency.
Polished surfaces require special care in wet areas.
Think of stone installations in the bath area as you would a plumbing fixture - you want a smooth, easily wiped surface that is easy to sanitize and requires no special effort. Hard water deposits can be very damaging to natural stone. If you have hard water you should soften it. Chemical cleaners should be carefully evaluated prior to using for compatibility with the stone. Never use acidic type cleaners on marble or limestone.