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<p>[QUOTE=&quot;bruthajoe, post: 4017462, member: 108656&quot;]My best answer at this point...</p><p>Usually a copper or bronze alloy which has a certain type of pattern in the&nbsp; (improper mix) which is enhanced by oxidation. Although it appears to be striations caused by cold extrusion, I haven&#039;t gotten that far. I&#039;m concentrating on issues with a &quot;woodie&quot;&nbsp; being that it must be influenced by the environment in some way to acquire this effect, as you may see. I started this thread because I thought I had some sort of defect but could not call it on my own. It did not look like the &quot;woodie&quot; examples I have seen. (I mistakenly referred to missing clad as a possibility in the opening post). I was told consistantley that the appearance was due to &quot;environmental damage&quot;. Some said improper alloy (woodie) plus environmental damage. I have since created an argument that if a woodie is caused by environmental &quot;damage&quot; or &quot;exposure&quot; whichever, that it can not be both since oxidation is an inherent contributing factor to the effect that gives an appearance resembling wood,&nbsp; &quot;woodie&quot;. I&#039;ve since been tortured with the notion that there are non oxidized examples with wood grain texture but are more difficult to spot. So I continue my argument to find the difference between woodie and environmental &quot;damage&quot;.[/QUOTE]</p><p><br /></p>

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