Why is white gold jewelry always rhodium plated?

Similar questions: white gold jewelry rhodium plated.

White gold if not always rhodium-plated, but when it is, rhodium gives it a reflective white surface. White gold is an alloy of gold and at least one white metal, such as silver or palladium. Like yellow gold, white gold is measured in carats.

Its properties vary depending on the metals and proportions used. As a result, white gold alloys can be used for different purposes; while a nickel alloy is hard, strong and therefore good for rings and pins, white gold-palladium alloys are soft, pliable and great for white gold gemstone settings. Skin irritationAlthough nickel was traditionally used in white gold, it can cause skin reactions.

Now white gold is commonly made with other white metals. Some people (about 12.5%) are sensitive or allergic to white gold. This occurs because of reaction to nickel found in some white gold alloys.

Reactions are mild and only involve skin rashes. Rhodium is a hard silvery white and durable metal that has a high reflectance. If slowly cooled from a red hot state it changes in air to the sesquioxide, which at higher temperatures converts back to the metal.

Rhodium has both a higher melting point and lower density than platinum. It is not attacked by acids: it is completely insoluble in nitric acid and slightly dissolves in aqua regia. A completely dissolution of Rhodium in powder form is only obtained in sulfuric acid.

This metal finds use in jewelry and for decorations. It is electroplated on white gold and platinum to give it a reflective white surface. This is known as rhodium flashing in the jewelry business.

Rhodium has been used for honours, or to symbolize wealth, when more commonly used metals such as silver, gold, or platinum are deemed insufficient. In 1979 the Guinness Book of World Records gave Paul McCartney a rhodium-plated disc for being history's all-time best-selling songwriter and recording artist. Guinness has also noted items such as the world's "Most Expensive Pen" or "Most Expensive Board Game" as containing rhodium.

Sources: http://en.wikipedia.org/wiki/White_gold .

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I'm currently looking for a pair 14kt White Gold Square Hoop Earrings- E3029 which Accent On Gold Jewelry did carry.

Is bronze jewelry as good in quality as real gold.

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