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Some metal leaves may look like gold leaf but do not contain any real gold. This type of metal leaf is often referred to as imitation leaf. [3] Metal leaves are usually made of gold (including many alloys), silver, copper, aluminium, brass (sometimes called "Dutch metal" typically 85% Copper and 15% zinc) or palladium, as well as platinum.
Gold leaf is a type of metal leaf, but the term is rarely used when referring to gold leaf. The term metal leaf is normally used for thin sheets of metal of any color that do not contain any real gold. [citation needed] Gold leaf is available in a wide variety of karats and shades. The most commonly used gold is 22-karat yellow gold. Pure gold ...
For example, aluminium foil is usually about 1 ⁄ 1000 inch (0.025 mm), whereas gold (more malleable than aluminium) can be made into foil only a few atoms thick, called gold leaf. Extremely thin foil is called metal leaf. Leaf tears very easily and must be picked up with special brushes. [citation needed]
Gilded frame ready for burnishing with an agate stone tool Application of gold leaf to a reproduction of a 15th-century panel painting. Gilding is a decorative technique for applying a very thin coating of gold over solid surfaces such as metal (most common), wood, porcelain, or stone. [1] A gilded object is also described as "gilt".
Silver leaf (art), elemental silver leaf used to decorate objects; Silver leaf (food), elemental silver leaf used to decorate food; Silverleaf, pen name of Jessie Lloyd, Australian writer; USS Silverleaf, an Ailanthus-class net laying ship
Dutch metal is a form of brass. The alloy typically consists of 85–88% copper and the remainder being zinc . It is also known by other names such as "composition gold leaf", "Dutch gold", "Schlagmetal" and "Schlag leaf".
Gold and silver are approved food foils in the European Union, as E175 and E174 additives respectively. The independent European food-safety certification agency, TÜV Rheinland, has deemed gold leaf safe for consumption. Gold and silver leaf are also certified as kosher. These inert precious metal foils are not considered toxic to human beings ...
The difference is about the hight of the metal if it is 0.3 microns usually it is called leaf. Metal leaf are made by a beating process (that can reach 0,3 microns it means 0,0003 mm). Foil are about 0,01 mm and can be as you said of Alluminum. In art product foil is also related at plastic films with gold or copper powder.