Dutch gold

noun, Sometimes Offensive.
1.
an alloy of copper and zinc in the form of thin sheets, used as an imitation of gold leaf.
Also called Dutch foil, Dutch leaf, Dutch metal.
Usage note
Dutch gold is not really gold. Because Dutch is used to mean “inauthentic” or “fake,” the term is sometimes perceived as insulting to or by the Dutch. See also Dutch.
British Dictionary definitions for dutch metal

Dutch metal

noun
1.
a substitute for gold leaf, consisting of thin sheets of copper that have been turned yellow by exposure to the fumes of molten zinc

Dutch gold

noun
1.
another name for Dutch metal
Encyclopedia Article for dutch metal

Dutch metal

brass with a yellow colour simulating that of gold. The percentage of copper ranges from 85 to 88, the remainder being zinc. As the zinc content becomes higher, the colour becomes paler. Highly ductile and malleable, Dutch metal is used in bronzing and in preparing imitation gold leaf. Gilding with Dutch metal is far less costly than gilding with gold, but the coating of Dutch metal tarnishes rapidly unless coated with lacquer. See also brass

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