Stone Restoration

Q. What is the difference between marble and granite?

A. Although both are stone and they're quarried from the earth, granite and marble (marble's relatives - limestone, onyx and travertine) are very different from each other. Granite is formed deep in the earth's mantle at extremely high temperatures, and is a very hard, resistant stone made of crystallized minerals.
The marble family: limestone, travertine, marble, onyx. It begins as sediment; animal skeletons, shells, plant matter, and silt at the bottom of bodies of water. After millions of years this solidifies into stone.