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copper gold alloy
A copper gold alloy is a copper based alloy with a small amount of pure gold. It can be produced to have a yellow or rose gold colour, or in other colours including grey, green and blue depending on the amounts of copper and silver added.
Gold is a precious metal that can be alloyed with a variety of other metals such as zinc, nickel, copper and iron to produce a wide range of jewellery items. Pure gold is a soft metal and may be too hard to work with, so it is mixed with other metals to make it stronger and more durable.
It can also be used as a metal for coinage. Its strength and durability are a key consideration when deciding which metal to use in a coin.
In some cases, the alloy will be made to be very fine so that it will be easily worked but will be resistant to damage in many circumstances. This can make it an ideal choice for coins.
A very fine alloy can also be created for jewellery and ornaments, but these will often require a special casting process. This can make them very expensive and they are typically used in limited quantities.
Another type of gold alloy is a rose gold which contains copper and silver to give it a reddish colour. This is a much more affordable alternative to other types of gold and can be combined with silver to create different shades of rose gold.