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Recent questions tagged copper

0 votes
2 answers
How do I uncover the copper color in native copper nuggets?
asked Jul 10, 2016 by Jgasper (120 points)
0 votes
1 answer
Chalcanthite preservation
asked Oct 3, 2013 by GeoLeo (120 points)
0 votes
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peacock ore... what is it?
asked May 25, 2013 by ricktvstreets (120 points)
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