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<p>[QUOTE=&quot;Lagaidh, post: 1083987, member: 28769&quot;]Yes it most certainly does. A solution many start with is pure TarnX. Depending on how long you dip you can most certainly change the nature of the luster because TarnX is somewhat corrosive. You can tell an over-TarnX&#039;ed coin because the luster is very diffuse... kind of like the reflected light is scattered to the point of having no focus. Original luster will be focused into metal flow patterns created by the strike. (A well-known example being &quot;cartwheel&quot; luster.)</p><p>&nbsp;</p><p>Acetone is one of the safest dips to use. As it will not affect the metal quickly. Luster is a refraction effect: light bounces off of the surface of a coin into our eyes. The luster we see on a mint state coin is the light bouncing off of the natural metal flow. When the surface of a coin is truly altered, luster will no longer look natural. The surface of the coin is no longer like that of the struck coin. This is why whizzed coins look so ridiculous: only proofs have flat fields.</p><p>&nbsp;</p><p>If you are using a dip that can affect the surface metal of the coin, then you most certainly can affect the luster. The original poster&#039;s example of the Franklin half was perfectly executed. The luster was not changed at all, and if you read his description for chosing to dip the coin, you understand that he took into account that the luster of the coin had not already been impaired.[/QUOTE]</p><p><br /></p>

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