The Eviva Shell Vessel Sink is made of Honed very dark blue marble. The modern natrual stone sink features a half egg like shape that defies the laws of symmetrical design. This sink can be pointed in any direction when mounted, the faucet could flow into either end of the sink depending on what unique look you are trying to achieve. The Shell is modern art for the bathroom, true to form. We recommend that you also purchase a drain with your stone sink in the same finish of your faucet.