1/18    Hello homeowners who have marble floors. I posted the following
        message a few weeks ago:
        http://csua.com/?entry=41190
        I know the answer now. First of all water based cleaners don't
        work well. Use the floor finish stripper and scrub your marbles
        till it's clean. Assume the marble's flat and clean, coat it
        using any "urethane fortified" solution. Some solutions
        require proper mixture, read the instructions carefully.
        Let it dry 30 min, and open all the windows unless you want
        to get high. Repeat coating two more times. Viola! You now
        have shiny looking, sealed marbles.