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<p>[QUOTE=&quot;Oldhoopster, post: 3459312, member: 84179&quot;]But copper is a very ductile metal.&nbsp; How could it &quot;break&quot; like that without any evidence of significant bending.&nbsp; It has to some sort of alloy problem.&nbsp; [USER=78244]@TypeCoin971793[/USER] A handheld XRF might give an idea of what else is there besides copper.&nbsp; You might want to try it, if you have access to one.&nbsp; I don&#039;t have a lot of confidence in the algorithm in trace elements, but it&#039;s worth a shot.&nbsp; An SEM/EDS would tell for certain, but unless you have any buddies at a university analytical lab, that test could be expensive.[/QUOTE]</p><p><br /></p>

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