Honing natural stone in simple shapes is difficult enough, but creating a shape that looks like a gear if seen from above is even harder. This is the case with the Mercurius Marble Table Lamp, which was designed by Tom Caldwell. Made from white marble, the table lamp has a modern feel thanks to the clean-lined body sans detailing. The natural linen shade teases out the slightly darker shading in the veining of the stone, which will vary from lamp to lamp.