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A good quality application of silicon impregnator should do the trick. It may also be helpful to install a water treatment system to reduce the calcium in the water. TIP If you squeegee and/or dry the shower wall immediately after a shower you will... Read More

Lichens and mosses produce oxalic acid, which can destroy calcium-based stones. Since they are considered plants, they will also attract moisture, which can cause all kinds of problems with the stone, including spalling. They can also cause the stone... Read More

There are several companies who promote a two step recrystallization process. The first step uses the standard recrystallization chemical and then is followed by an application of a second chemical containing waxes which places a higher shine on the... Read More

No, it is not true. Many marbles do have veins, but there are some that appear to have no veins at all. On the other hand many granites have no veins but there are also those that do have veins. Determining if a stone is marble or granite should not... Read More

How can I prevent hard water spots in my polished granite shower? Hard water deposits can build up on polished granite in a shower, leaving behind an unsightly residue. Here are suggestions for preventing those hard water deposits. If you already... Read More

What should you do about hard water deposits on your ceramic tile shower? Hard water deposits can build up on ceramic tile in a shower, leaving behind an unsightly residue. Here are suggestions for removing and preventing hard water deposits.  NOTE:... Read More

Q. What are those white dots on my white marble?   A. This article, by Frederick M. Hueston, Stone Forensics, provides the answer.Have you ever wondered what those white dots are on white marble? You sometimes see thousands of them in high... Read More

Q. What is the best way to clean a white marble bathtub? What is the best way to keep it clean? What shampoos and soaps should be used by people in marble bathtubs?   A. The shampoos, soaps, and cleaners you use can damage, stain, or diminish the... Read More

Q. I have a marble table top with a problem, and I need to get some advice on what may have caused it. There are lots of spots plus a few ring shaped marks. The marks cannot be cleaned off. The table was delivered in pristine condition. Is it... Read More

Q. I used vinegar to clean my shower tile. It is textured marble mesh mounted black and white mosaic tile. I didn't know I shouldn't use vinegar. Now they are discolored. Do I just need to re-seal it? Thank you!   A. The acid in the... Read More