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<p>[QUOTE=&quot;GDJMSP, post: 776629, member: 112&quot;]No matter what, when a coin is dipped <u>some</u> of the luster is removed. And the less luster it has the longer it takes to tone. But of course that is if the dipped coin is compared to an undipped coin.</p><p><br /></p><p>Now, what you have probably read or are thinking of is something like this. Toning, in and of itself, puts a protective layer on the coin that slows down additional toning. </p><p><br /></p><p>So a dipped coin with some luster remaining will tone faster than a coin that is already toned. But it will tone slower than a undipped, untoned coin with full luster.</p><p><br /></p><p>You have to keep in mind that we are talking about 3 different animals here - </p><p><br /></p><p>1 - a fully lustrous and undipped/untoned coin</p><p><br /></p><p>2 - a previously dipped coin that has some luster remaining; but that luster has been smoothed out and lessened than it originally was by the acid in the dip</p><p><br /></p><p>3 - a toned coin</p><p><br /></p><p>So when I say that a dipped coin will tone slower than an undipped coin, what I am talking about is the same coin in two different states of condition.</p><p><br /></p><p>I am talking about the coin in its original condition as it came from the mint. Let&#039;s say, purely for the sake of illustrative purposes, that it took 10 years for that coin to become toned.</p><p><br /></p><p>Now that coin is dipped, removing all of the toning and part of its original luster.</p><p><br /></p><p>Now for that same coin to re-tone, back to the point it was immediately before it was dipped - will take 15 or 20 years, if stored under the same conditions it was originally, instead of the 10 years it took the first time. And the reason it takes longer is because some of the luster has been removed.</p><p><br /></p><p>I guess the main point is this - the more original luster a coin has, the faster it will tone. Lessen that luster and it will take more time.[/QUOTE]</p><p><br /></p>

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