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'Gold leaf' is gold that is beaten into extremely thin sheets. The thin gold sheets are commonly used for gilding. Gold leaf is available in a wide variety of karats and shades. 22-karat yellow gold is the most commonly used.
Gold leaf is sometimes confused with metal leaf but they are different products. The term ''metal leaf'' is normally used for thin sheets of metal of any color that do not contain any real Karat gold. 24 Karats is pure gold. Real yellow gold leaf is about 92% pure gold. Silver colored white gold is approximately 50% pure gold.
Layering gold leaf over a surface is sometimes called ''gold leafing'', and is a very common form of gilding.

Contents

Uses in gilding

Gold leafing in art

Water gilding

Culinary uses

Uses in gilding

Gold leafing in art

Gold leaf has traditionally been most popular and most common in its use as gilding material for decoration of art (including statues) or the picture frames that are often used to hold or decorate paintings, mixed media, small objects (including jewelry) and paper art. "Gold" frames made without leafing are also available for a considerably smaller price, but traditionally some form of gold or metal leaf was preferred when possible and gold leafed (or silver leafed) moulding is still commonly available from many of the companies that produce commercially-available moulding for use as picture frames.

Water gilding

Traditional water gilding is the most difficult and highly regarded form of gold leafing. It has remained virtually unchanged for hundreds of years, and is still done by hand.

Culinary uses

In some cultures gold (and silver) leaf is considered non-toxic when labeled as food-grade and so can be used to decorate food or drink. Such a leaf is called Vark. They can be often found on a number of desserts including chocolates and ''mithai''.
In Asian countries, gold in particular is sometimes used in fruit jelly snacks. It was also used in coffee, especially during Japan's "bubble economy". In Kanazawa, where Japan's gold leaf production was centred, gold leaf shops and workshops sell green tea and hard candy with gold leaf within.
A recent trend in the US has seen the inclusion of floating bits of gold leaf in liquors such as Goldschläger. However, in Continental Europe liquors with such bits of gold leaf are known since the late 16th century. A well-known example is Danziger Goldwasser, originally from Gdańsk, Poland, which has been produced since at least 1598.