In conclusion, smoke, soot and ash are problems for marble. The key to cleaning a fireplace is prevention:
To prevent the accumulation of ashes or coals in your firebox while you enjoy fireside gatherings with family; as long as you look after your marble fireplace surround, and clean it regularly you shouldn’t have to worry too much about the marble staining too much.
To prevent the accumulation of soot, it is best to clean your fireplace and surrounds after every fire. If you don’t have time for a thorough cleaning at least give it a quick buff to remove the soot and dust.
To prevent the accumulation of ash, make sure to clean your fireplace after every fire. The best way is with a soft brush and plenty warm water and remove any surface dust – you can use mild soap if it’s particularly dirty or smoky; just don’t let any soapy residue remain on marble as this will damage its surface over time.
Use these products to keep your marble fireplace clean:
Lithofin Easy Clean – For easy maintenance and to clean away any grime.
Lithofin Easy Clean – This product will seal the pores in your natural stone and prevent water damage. You can use this once a month with a dry cloth.
Fine Steel Wool – This product is excellent for removing any residue that is on your surfaces, like limescale. Only use the “Fine” steel wool, any other grade will be too abrasive and could scratch your stone.