Gold Jewelry

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Gold Jewelry

Pure gold, which is of twenty four carats, is used to make jewelry by combining it with base alloys. The reason why gold is used in jewelry is because it is so soft. When gold is mixed with base alloys, a number of properties of pure gold, such as the color, the melting point, the ductility, and the hardness, all are altered. In alloys which have a lower caratage, that is ten carats, fourteen carats, eighteen carats, or twenty two carats contain silver, copper,

, or other base metals in higher percentages in the alloy. The base metal which is most commonly used is copper. When it is used the metal produced is redder in color, and it forms gold of eighteen carats with twenty five percent of copper in it.

In Russian jewelry as well as antique jewelry, there is a copper cast which is not dominant but it is still distinct. This forms a type of gold known as rose gold. The alloy gold copper which is of fourteen carats is almost the same as a number of bronze alloys in color. Both of these can also be used to make police badges as well as other badges.

Two other types of gold used in jewelry are blue gold and purple gold. Purple gold is made by making an alloy with aluminum, and blue gold is made by making an alloy with iron. But both of these are not used mostly except in jewelry which is specialized. Gold jewelry is usually not used because it is more brittle and not easy to work with.