Cutting Marble Tile

What blade do I use? Can I use the same blade as is used for ceramic?

Yes I am using a wet saw.

Generally, yes. Marble is actually softer than most tile. A diamond blade will cut anything man made softer than diamond. Tile saw blades can have soild rims or slotted rims. Either can work if it is in good condition, the moving table is aligned well with the blade, and there isn't a bunch of runout in the motor shaft or blade. A continuous rim blade will cut a little slower, but using a sloted one keeps it from warping if it gets hot (shouldn't).

Thanks.

I'm borrowing the wet saw, and I'm told its in good shape so I should be ok.

Use it outside or cover the area well. They do not half make a dirty mess! Including over you.