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Daily Wire Jewelry Making Tip
January 19, 2010

Question:

In July I sold a piece of silver.  Three weeks later the customer returned the piece and to my amazement it was black.  I re-tumbled the piece and it was restored to its original condition.  What are your thoughts on what chemical or perfume substance could have cause this to occur?  The piece is still bright and shinny with no signs of tarnish.

Answer:

OK, the only culprit I know of that can cause serious tarnish so quickly is chlorine. If the customer wore her sterling silver in a pool or vacationed and took a shower where a large amount of chlorine is added to the water, this would turn sterling black about immediately. Using a tumbler to clean the piece again is great, but is it also being polished at the same time? Polish would coat the piece and add a certain amount of limited protection.

Answer contributed by Dale “Cougar” Armstrong

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