Gold mill is a term used to describe a facility that extracts gold from mined ore using mechanical or chemical processes. Other related terms that can be used as synonyms for gold mill include gold refinery, gold processing plant, and gold concentrator. A gold refinery refers to a facility that processes raw gold into commercial pure gold. Gold processing plant describes a production facility that processes gold ore into various forms, such as bullion, jewelry, or bars. Gold concentrator is a device used to separate and concentrate the valuable minerals within gold-bearing rocks. All of these terms are used interchangeably to describe facilities that extract gold, refining it into a purer form, or concentrate it for further processing.