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www.reference.com/article/brass-9bd3ffb8ac443b74

Brass is an alloy that is a mixture of the metals zinc and copper. Using brass makes sense for many manufacturers since it is durable and easily transformed into objects.

www.reference.com/article/nickel-used-7624e9ced7f4f249

Nickel is widely used in electronics, coinage, chemical reactions and the production of stainless steel. It is frequently used in an alloy form with iron and chromium.

www.reference.com/article/nickel-1cfe31ff982a3527

As of 2014, the nickel coin features a portrait of Thomas Jefferson, third president of the United States. The reverse depicts Jefferson's Virginia home, Monticello. In 1938, the Jefferson nickel replaced the Indian head or Buffalo nickel design that had been in use sin...

www.reference.com/article/brass-made-ac8735345017e601

Brass is made of zinc and copper. Some manufacturers add lead to brass to make it easier to finish with machines. Brass is an alloy, or a substance formed by melting at least one metal with other elements.

www.reference.com/article/nickel-made-518f8c551f06b3b9

Nickel is not manufactured or synthesized. It is an element with the chemical symbol "Ni" that occurs naturally in ores and minerals. It is also found in the Earth’s crust and occurs as a by-product of cobalt blue production. The Swedish chemist Axel Fredrik Cronstedt d...

www.reference.com/science/color-nickel-922a4702e6fb2183

Nickel is silver white in color when the metal is in its natural form. Nickel compounds express in blue, green and yellow.

www.reference.com/article/nickel-silver-21c96603e38a77c8

Nickel silver is an alloy made from 50 to 80 percent copper, 5 to 30 percent nickel, and 10 to 35 percent zinc. Although it is silvery in appearance, it is non-precious and contains no silver.