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<p>[QUOTE=&quot;TheFinn, post: 3137667, member: 90102&quot;]The luster is caused by microscopic flow lines radiating out toward the edge.&nbsp; This is caused by the wear of the coin blank against the die face.&nbsp; Although the planchet is made of a metal softer than the hardened steel, over thousands of strikes if slightly wears the die - like water in a stream against the rocks.&nbsp; The more wear, the frostier the luster.&nbsp; If you burn the coin at angles, you will see how the luster moves like looking at a vinyl record.&nbsp; If there are breaks in that luster, it is usually from wear (it can be from weak strikes, but the luster of some sort will be there).[/QUOTE]</p><p><br /></p>

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