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why does this 1941 d penny looks silvery. its not magnetic
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<p>[QUOTE="Burton Strauss III, post: 4277371, member: 59677"]BTW, for the record - not in this case - coins are not plated with mercury (despite the video), rather Mercury forms an amalgam with the copper.</p><p><br /></p><p>Why this is relevant is because it means - even if you did it in a proper haz containment environment, heating the coin to remove the mercury will leave behind a surface more damaged than we see when you use acid to strip the plating...[/QUOTE]</p><p><br /></p>
[QUOTE="Burton Strauss III, post: 4277371, member: 59677"]BTW, for the record - not in this case - coins are not plated with mercury (despite the video), rather Mercury forms an amalgam with the copper. Why this is relevant is because it means - even if you did it in a proper haz containment environment, heating the coin to remove the mercury will leave behind a surface more damaged than we see when you use acid to strip the plating...[/QUOTE]
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why does this 1941 d penny looks silvery. its not magnetic
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