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<p>[QUOTE=&quot;desertgem, post: 2714050, member: 15199&quot;]Its the HOT Rollers I am considering. There must be an excellent reason that they are kept hot, and how hot in regards to the components melting points. Outside of this discussion, I would think that the heat was to maintain the homogeneity&nbsp; of the mix as it was moved through the reducing stages. So could the wood grain be effects from &quot;cold&quot; rollers, where the metal formed into distinct clumps. since coin metals that aren&#039;t purposely layered ( such as zincolns)are bound by &quot;metallic bonds&quot;, they do not tend, to form aggregates &quot;grains&quot; unless they are not cooled properly. Those that have silver soldered know very well the granulation that can form if the heat cycle is not correct. Jim[/QUOTE]</p><p><br /></p>

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