Dents in Granite

Dear Tom:

I have recently installed granite countertops in my new kitchen. These were purchased from Home Depot which uses Innovative Stone. I have prided myself on taking good care on my stone but tonight, my husband found a dent measuring 1/4 inch on the top edge of my island. Needless to say we’re upset. I’m also worried that if I have damaged it, not knowing how, I can do it again. My daughter said that she always remembers a slight dent in the stone but I guess maybe something fell on that exact spot and made it bigger. We did find a small piece of the stone but it was smalller than the dent.

Is this possible? I thought granite was indestructible???

Please let me know if anything can be done.

Thank you

Hello Nathalie,

There are only a couple reasons a ‘dent’ in your granite would happen. Either a very heavy metal object was dropped on it, like a hammer, or this is a spall at a stress point in the granite. You can decide if the first possibility is the case, and let me explain the second. First of all, the definition of ’spall’ is “A chip, fragment, or flake from a piece of stone or ore”. Your granite, “Ubatuba” is stone called a charnockite which can contain nickel-iron that oxidizes and leaves browns rings and spider veins. You may see them as a gold veins. This reaction continues very slowly but is accelerated by sunlight (ultraviolet light).

There is a good chance the spall occurred as a result of natural oxidation breaking the bond of the stone at this location. Finally, yes, it could happen again, naturally. I recommend either contacting a professional granite fabricator to fill it, or you could try two-part epoxy (use a razor blade) and fill it yourself.

Best wishes,
Tom Cordova

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