Bronze d'oré, also known as ormolu or gilt bronze, was a decorative finish used on luxury furnishings in the 18th and 19th centuries. An application of finely ground high carat gold and mercury amalgam was placed on objects of bronze. When subjected to extremely high heat, the mercury evaporated, leaving behind a lustrous coating of gold.

 

Opaline glass is known for its semi-opaque appearance and delicate translucence.  It was mostly produced in 19th century France by adding materials such as bone ash to lead crystal, resulting in a milky, opalescent effect.  The resulting glass resembles porcelain.