Why does the silver turn grey
by Dave Tucker
When tumbling why does the silver some times turn grey
Hi Dave. Sorry for the long delay in responding. Your question was accidentally mis-filed as completed.
As to your question, without knowing more details, it could be any of several things. If you haven't already done so, recommend you read my article on Tumble Polishing
Also, you might try doing a Site Search
, trying various keywords. Good luck.
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