A "marble slab" refers to a thick and flat piece of rock or stone made from marble, which is a type of beautiful and expensive rock used in construction and art. Full definition
I adore your giant marble slab, it must be awesome using it to prep food. (cosmopolitancornbread.com)
Face down on the cool, smooth marble slab, I lay hot, sweating and uncomfortable. (theexpeditioner.com)
A middle - grade granite slab might run $ 80 to $ 110 installed; the same size and quality marble slab would be 15 percent more. (realtormag.realtor.org)