Beading Glossary: Metals
A common metal not considered to be precious. Examples include nickel, copper, aluminum, and zinc. Base metal findings tend to oxidize or corrode relatively easily in comparison with precious metals like silver and gold. They also produce more allergic reactions. Base metals are much cheaper than precious metals so they are best to use while designing, even if your final piece will be made with precious metals.
An alloy of copper and zinc. Its malleability makes it easy to mold and it can also be worked “cold”. Brass wire give a distinctive color to pieces. Brass beads are sometimes plated with silver, gold or other precious metals. Different techniques are used to colorize brass beads including oxidation and polishing. The finest brass beads are imported from Africa or Asia.
A lustrous, magnetic, silvery-white metal with a blue tint. Cobalt has been detected in Egyptian sculpture and Persian jewelry dating all the way back to third millennium BC, and in Chinese artifacts dated as early as AD 607. True cobalt beads are not often seen in typical beading applications. However the term cobalt is used to describe the deep, lustrous blue color of beads made of other materials. photo credit
Copper is a reddish-orange metal and one of the elements in the periodic table. Pure copper is soft, so it is often mixed with other metals to create stronger alloys like bronze and brass. Copper is also usually the main alloying metal in sterling silver. Copper is a very good electrical conductor, and is sometimes used to make therapeutic bracelets. photo credit
A precious metal and an element in the periodic table. Gold is very malleable, as well as being resistant to corrosion. Like copper and silver, pure (24 karat) gold is very soft and so it is usually alloyed with other metals when used in jewelry. Copper is the most often used alloy, which yields a pretty rose gold when higher percentages are used. White gold is gold alloyed with nickel, palladium, or other white metals.
A heavy, malleable, corrosion resistant, grey-white precious metal. Platinum is more precious than gold. Though platinum beads can be purchased through specialty dealers, platinum is rarely used in typical beading applications and is found mostly in fine jewelry. For example, the frame of the Crown of Queen Elizabeth, the Queen Mother, is made of platinum. But like all metal names, it is sometimes used in color descriptions rather than literally. photo credit
A metal and an element in the periodic table. Like copper and gold, pure silver is very soft, so is often mixed with other metals to make it stronger. The most common silver alloy used in jewelry is sterling silver, which is 92.5% silver and 7.5% copper. Silver wire and sheets can also be hardened by being hammered. Sterling silver jewelry may be plated with a very thin coat of fine silver to give it a shinier finish. Silver is often mixed into colored gold alloys to make them paler and harder.
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