Cleaning Calcium From Granite
We did not seal our granite countertops in the bathrooms when we had them installed. Now two years later there is a white water mark from the calcium from the water near the faucet handle.
Our granite is a dark color (don’t remember the name). What do I clean it with to get the white haze off? I will definitely seal it, once it can be cleaned.
Thank you,
Janet LaCorte
Hello Janet,
First of all, Please be sure that you have Granite, not Marble. This advice will ruin marble, but it will not harm granite.
Remove the faucet and scrape the area clean with a razor nice. Then apply a phosphoric acid solution (Hardware store) on the surface. It will eat the mineral deposits away. (Note: Phosphoric Acid will ruin marble and also damage any metal.) After you are done, let it dry out and reply a premium granite sealer.
Bet wishes,
Tom Cordova






October 13th, 2008 at 12:37 pm
Hi Tom. We have a very dark black/tan granite in our kitchen that was installed a little less than a year ago. It was sealed by the installer. Near the sink area there is pretty extensive mineral build-up from water exposure. Is there a way to remove it without also removing the sealer? If not, how should I go about it? Thanks for your help!
-Keya Cook