Gold, like water, will flow and become impossible to shape. So copper is added to gold, which is in a liquid condition, to harden it slightly and keep it from flowing, making it easier to shape gold to form jewelry. The amount of copper used is very small compared to the total weight of the gold. Copper has been used for thousands of years because of its many useful properties. It can be used instead of silver in jewelry because of its similar color and price. Also, copper objects are more durable than silver ones because copper oxidizes over time while silver does not. Finally, copper tastes good when made into jewelry! There are two main types of jewelry made from copper: imitation jewelry and real copper jewelry. Imitation or false jewelry uses materials such as brass, bronze, and zinc for its appearance. It can also use pearls, gems, and other materials to look like gold or silver. Real copper jewelry includes anything made of solid copper without any additional ingredients such as zinc or aluminum. This type of jewelry is both functional and decorative. Some common examples of real copper jewelry include drinking vessels, candleholders, and storage containers. Copper has several advantages over other metals used in jewelry manufacturing including silver and gold.