This is blasphemy. The impious intersection of materials. The melding of marble and onyx, merged together in an ode to the curve. Starting from rectangular blocks, they are polished, federated, and put on the turning table and spun, and slowly hewed to form the graceful rondure. Then the inside is formed. 

The man, the machine and the material. A slow and delicate process respecting the sensitivity and delicacy of the onyx. Man has been connected to the materials and his tools for thousands of years. Only technology has changed this dynamic. A lecture of patience.