Sunday 11 March 2012

Basic Jewellery Cleaning

The following information relates purely to the cleaning of solid precious metal chains and charms WITHOUT settings of gem stones, pearls or opals etc.

In other words the entire piece is composed ONLY of precious metal.

This information is not appropriate for items of jewellery set with stones or other gems. Pearls, opals and many other gem stones require special procedures so as not to cause damage to them. Please consult a jeweller regarding the correct cleaning instructions for these pieces.
Pure gold is extremely resistant to reacting with any chemicals. In fact it takes a mixture of 2 acids called aqua regia (1 part concentrated nitric acid and 3 parts concentrated hydrochloric acid) to dissolve it, strangely neither acid alone can. However, almost all gold jewellery is made from gold alloyed with other metals, often silver and copper. Exposing gold alloys to chlorine based chemicals can in fact damage the alloy.

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