Aurora Cleaning

Cleaning Stone Sinks

"Our natural stone sinks are made from granite, marble, onyx or sandstone. All are very durable and every stone has beautiful characteristics and unique coloring."


To remove everyday stains, clean the surface with a soft cloth or sponge and a mild dish washing detergent. More stubborn stains can be removed by using a mild abrasive cleaner such as Ajax®. If a tough stain has become ingrained in the bowl, mix a solution of forty-parts water to one-part bleach and let stand in sink overnight. Drain and rinse thoroughly. This process is only for extreme circumstances and should not be used regularly.

Mineral Deposits

Mineral deposits can be removed by using a weak solution of vinegar and water. Rinse thoroughly.


Do not store heavy or sharp objects above a granite sink. If they fall, or make contact with the sink, the granite can chip or scratch. A chipped or cracked granite sink can be very difficult and costly to repair or replace.


Since marble and onyx are porous stones, they are more susceptible to staining and damage than other materials. That being said, non-abrasive cleaners which do not contain acid are a must when cleaning. To remove soap scum, use a mild liquid detergent and a soft sponge or cloth to rub over sink. Sprinkle 1 tbsp. of baking soda on top of detergent. Rub the sponge over the entire sink and rinse with warm water. Be sure to dry thoroughly with a soft cloth. Professional stone cleaners can be purchased from most hardware stores which will have the right ingredients to keep your sink clean and safe.


Periodically hand-polish your marble or onyx sink with a soft cloth or stone polishing pad. Polishing will keep the stone looking shiny and new, and extend the life of your sink.


For some types of damage, a high quality car wax and compound can be used. After cleaning the stone, carefully wax and compound the problem area of the sink. If this does not repair the damage, call a stone repair professional for assistance.


Sandstone sinks will inevitably become dirty or covered in grime. Sandstone requires routine cleaning as soil can build up and wear away the protective crust, causing erosion. Fortunately, simple cleaning solutions will do the job. To remove cosmetic soil buildup, pour 1/4 tsp. of stone detergent into a 1 qt. container of warm water. Soak a rag in the solution and wipe the entire sink. Rinse with a clean, wet rag and running water. For soap scrum removal, douse the sink with non-abrasive soap scum remover. Wipe the covered sink with a clean, wet rag and rinse with warm water.

Hard Water Stains

Buff any crusty, white water deposits with a dry, super-fine steel wool to remove stain. Wipe area with a clean, wet rag and buff the wet sandstone with a dry towel.