SIMPLE ACID TEST FOR GOLD JEWELRY
1. Make a scratch in an inconspicuous place to remove any protective coating, such as lacquer. A scratch will not be needed if there is no protective coating
2. Using rubber gloves and a non-metal item, apply one drop of nitric acid to the scratch
3. There will be no reactions if the object being tested is gold. A bright green reaction means the object is common metal a milky reaction in the scratch means it is gold over silver