History and Uses For Gold

Generally speaking gold in its purest form is used for investment more than decoration, as it tends to be quite vulnerable to scratching. It is in a category with silver, palladium, rhodium which are consider precious metals. Because of its malleable nature, it is usually mixed with other metals to harden it and in some cases change its color. Alloyed gold can be made harder by adding nickel or a small percentage of titanium. These alloys not only strengthen it, but determine the color of

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