craftmanship question

["Andrei Stefanescu" <andrei_stefanescu@xxxxxx>]

Hi everybody,

I feel I'm at wit's end, can anyone help me?

I am working on a piece of marble which has a crack in it in an area I would
like to bring down to a polished surface.

Now the problem is that the area in question is relatively thin, about 1.5
centimeter thickness and about 7 centimeter in diameter. The surface bears
point chisel marks, I need to use the clawed chisel and then the flat chisel
in order to smooth it to where I can use sand paper. I can't use power tools
because the surface in question is surrounded by a high rim and there's no
space to move about.

I can hear there is a crack because that part of the stone sounds hollow. I
am afraid that it won't take the impact of the claw chisel, it a marble of
relatively poor quality, glass-like, very brittle and very hard. It is nice
to work it when it is whole, but I just don't know how to go on from here.

So any help will be most welcome...

Thanks,
Andrei