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Jewelry News07/31/2008 Refer a FriendStore Information |
What is Rhodium?
Rhodium, atomic element Rh on the periodic table of elements is a sheen white metal. It is the rarest of all non-radioactive metals on Earth. Its annual production is only 3 tonnes a year. Rhodium is a member of platinum group (PGM), which includes iridium, osmium, palladium, platinum, rhodium, and ruthenium. Rhodium is one of three metals from this group used for jewelry. Not surprisingly, rhodium is the most expensive metal of this group and is the best in resistance to corrosion and tarnish under most environmental conditions. It is durable, hard and highly reflective.  Rhodium is often used as an alloying element for hardening platinum and palladium. Such alloys are very popular in different fields of engineering industry. For jewelry rhodium is used as for plating. White gold and platinum jewelry is often plated with rhodium to increase its wear ability and prevent scratching. Rhodium is also hypoallergenic. Rhodium protective coating is useful for white gold which often contains nickel to give it a white sheen look. It is well known that nickel is not biocompatible and approximately 15% of people suffer from some kind of allergies to nickel. Thus rhodium serves as an additional layer between skin and base metal preventing skin from irritation. In additional to its physical properties, rhodium has a beautiful bright white look peculiar only to rhodium. Gem-Fashion offers a vast collection of silver fashion jewelry plated with rhodium. Any plating wears off. How soon, it depends on how much wear a jewelry item takes and how heavy is the layer. For our jewelry we use 5 to 10 micron. which is good for many years. Virtually any jeweler can re-plate your jewelry once it starts showing any wear marks. 
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