Learn about the discovery and meaning of these ancient stone figures from Sardinia.

Scientific research on food residue found in nineteenth-century stoneware vessels produced by enslaved artisans sheds light on the contents once stored inside.

A process that eats into designated areas of a material's surface through the application of acids or an electrical current.

A process by which chemicals are used to purposefully induce the formation of a thin colored layer on the surface of metal, referred to as chemical patination.

A decorative technique that uses an electric current to deposit metal particles from an electrolytic solution into designated recesses on a metal object.

To produce a design or pattern by inlaying a softer metal into a harder one — often gold, silver, or copper into a darkened steel background.

A decorative technique that fuses a powdered glassy material into a recess in a metal surface through the application of heat.

An ancient Japanese metalworking technique, translated to mean wood eye or wood grain, by which layers of contrasting colored metals are fused together with heat and pressure and worked to produce a patterned mixed-metal laminate.