Ormolu (; from French or moulu, "ground/pounded gold") is the gilding technique of applying finely ground, high-carat gold–mercury amalgam to an object of bronze, and for objects finished in this way. The mercury is driven off in a kiln leaving behind a gold coating. The French refer to this technique as "bronze doré"; in English, it is known as "gilt bronze". Around 1830, legislation in France had outlawed the use of mercury for health reasons, though use continued to the 1900s. Craftsmen principally used ormolu for the decorative mountings of furniture, clocks, lighting devices, and porcelain. Process The manufacture of true ormolu employs a process known as mercury-gilding or fire-gilding, in which a solution of mercuric nitrate is applied to a piece of copper, brass, or bronze; followed by the application of an amalgam of gold and mercury. The item is then exposed to extreme heat until the mercury vaporizes and the gold remains, adhering to the metal object. This process has generally been supplanted by the electroplating of gold over a nickel substrate, which is more economical...

A bench jeweler is an artisan who uses a combination of skills to make and repair jewelry. Some of the more common skills that a bench jeweler might employ include antique restoration, silversmithing, goldsmithing, stone setting, engraving, fabrication, wax carving, lost-wax casting, electroplating, forging, & polishing. Jewelry manufacture In general, an original design is made and sold using processes such as molding, casting, stamping and similar techniques. The other is original, one of a kind work. The bench jeweler will be a factor in many facets of the process, depending on what is needed and the skills of the worker. When a production piece is contemplated, it may go through a design process that can range from one person with an idea to a full-scale planning stage involving teams of artists and marketing professionals. Eventually, that design will need to be made into a real piece of metal jewelry, which is generally called a model, and the worker who makes it is generally the model maker. This is often considered the highest form of craftsmanship, as the piece must be...