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Gold and chemical reactions
Why is my jewelry leaving black marks?
If your solid gold jewelry is leaving black marks, it is most often the result of discoloration caused by a reaction between your skin and the alloys (a mix of metals – what all 14k and 18k gold is composed of), especially when the jewelry touches areas that perspire. Since it’s a natural part of the process, it can’t be avoided and severity may vary from person to person. No worries, you may just need a different gold mixture – we recommend you return it, or try 18k solid gold which has a higher percentage of gold in its mix. Well, aren’t you fancy!