stain on black marble

Dear Maurizio, i have a black marble fire hearth on which i have spilt a drink which was a fruit juice diluted with water, this has stained the marble, what would you advise i do to clean the stain and will the drink have damaged the marble. Thankyou

 

Dear Pat:

For starters, a stain – a real stain – is always darker than the stained material. If it is lighter, it's either a mark of corrosion created by an acid (etching), or a caustic mark created by a base (bleaching). There are no known exceptions to this rule. In the case of natural stone, bleaching can't occur, and therefore they are etch-marks all the time: plain and simple surface damages, like shallow chemical scratches. The acidity of your drink did the deed.

That duly said, you now understand that you have a surface damage to deal with, not a stain to be removed.

So, how do you go about that?

With a marble repair kit.

The centerpiece of such kit – which is probably all you need – is a polishing powder for marble that was formulated to be handled by non-professional consumer. Keep in mind that black marble is only second to green marble as far as difficulty of face polishing is concerned, but it will work!

 

May I ask you now to please read and e-sign our Statement of Purpose at: http://www.marblecleaning.org/purpose.htm?

Ciao and good luck,

Mauri z io Bertoli

 

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