Identifying metals in jewelry coins or antiques (English Edition)

Identifying metals in jewelry coins or antiques (English Edition)

Originally created to help identify precious metals in scrap electronics this technique can be easily used to identify the type of metal in anything,

From time to time you may come across an item you think contains gold, silver, platinum or other precious metal but you are not sure. Old jewelry, coins, antique pieces are often unmarked. How can you find out easily what metal the item contains without using expensive chemical or other test? Hardness. Every metal has a hardness rating. A hard metal will scratch a softer metal but a soft metal will not scratch a harder metal. Using this property of metals allows you to narrow down and identify your metal. It’s a Sherlock Holmes approach, eliminate the impossible and whatever is left must be the truth. Is that rolex watch steel or titanium

Using the charts and instructions here can help you can identify the following metals.
Gold, silver, platinum, palladium, rhodium, copper. aluminum, nickel, iron, lead, tin, zinc, tungsten, titanium, silicon, cobalt, iridium and mercury.

This technique only identifies the metal not the karat or amount of precious metal but it is still very useful from separating junk from potentially valuable items.

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