There are several stone care products of varying quality on the market today, however specialized cleaning products are not really necessary to keep your stone sink and bath tub in pristine condition.   

A regularly scheduled cleaning with a very gentle soap is all that is needed to keep your sink and tub looking their best.                

To clean: use a soft, non-abrasive cloth, mild soap, warm water and gently wipe the interior and exterior of your stone sink or bathtub.  Rinse thoroughly with clean water and wipe your sink and tub dry with a clean soft cloth.

Warning!  Housekeepers love to scrub and polish and typically use a variety of abrasive cleaning agents and disinfectants when they clean your bathrooms.  If they are not informed about the proper care of your natural stone sink and bath tub, they may unknowingly scratch or damage the surface. 

Be sure to go over this information with your housekeeper and educate her or him, about the proper way to clean your stone sinks and tub.