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<p>[QUOTE=&quot;Insider, post: 7996891, member: 24314&quot;]messydesk, posted: &quot;Particle boardies.&quot;</p><p><br /></p><p>Nice word for it.&nbsp; I prefer GRAIN boarders.&nbsp; </p><p><br /></p><p>I&#039;ll still call the characteristic block pattern, crystallization.&nbsp; What we are looking at is the microstructure of the grains.&nbsp; As a member wrote, it has to due with how the alloy of the ingot was mixed, cast, and cooled.&nbsp;&nbsp; I suspect the Internet will explain this pattern much better than I care about.&nbsp; </p><p><br /></p><p>If anyone looks on the net and there is a better word than &quot;Crystallization&quot; or &quot;Grain Boarders,&quot; please let us know.[/QUOTE]</p><p><br /></p>

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