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<p>[QUOTE=&quot;medoraman, post: 1358003, member: 26302&quot;]Great explanation Chris. I would be more generic in my description of luster as the resolidified metal that was melted in the striking process. I do not think generically is HAS to include flow lines, though that is probably a requirement of modern coin striking methods. I say this generically since ancient coins have luster, but not always outward flow lines depending on how it was minted. However, the act of striking a coin always creates a thin layer of melted metal than when it cools forms a shiny covering over the coin. This aspect of coinage was famously used by the Romans to take low grade silver planchets, leech the copper from the surface, and when struck the silver ions on the surface would melt and coat the coin with a silver color. This gave the appearance, fresh from the mint, of a silver coin when in fact it was only about 5% silver.</p><p><br /></p><p>I know, ancient collectors always sticking thier noses in. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>Chris (2)[/QUOTE]</p><p><br /></p>

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