GOLD
Gold is a chemical element with the symbol Au. It is a highly sought-after precious metal which, for many centuries, has been used as money and in jewelry. The metal occurs as nuggets or grains in rocks, underground "veins" and in alluvial deposits. It is one of the coinage metals. Gold is dense, soft, shiny and the most malleable and ductile of the known metals. Pure gold has a bright yellow color traditionally considered attractive.
Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver, by chemical or electrochemical means.
Mechanical or chemical affixing of thin gold foils onto the surface of objects is instead known as gilding.
Rose gold is a gold and copper alloy widely used for specialized jewelry due to its reddish colour. It is also known as pink gold and red gold. Because it was popular in Russia at the beginning of the nineteenth century it is also known as Russian gold, although this term has become somewhat rare.
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