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 Replies: 14 / Views: 1,731 |
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Valued Member
Canada
112 Posts |
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Pillar of the Community
United States
7188 Posts |
I would assume it was exposed to moisture for an extended time. Just like a copper statue in the park, they turn green.
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Pillar of the Community
United States
2757 Posts |
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Valued Member
United States
450 Posts |
Let it soak in olive oil for awhile, it will do wonders...
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Pillar of the Community
United States
9792 Posts |
Verdi-Care would do wonders for that coin!
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440 |
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Bedrock of the Community
United States
20753 Posts |
Or it was minted with Green Copper. Or it was painted by a real Indian to get even with us for using his face on that coin.  Or was stored in an area that used to use Sulfur Rich Coal in their furnaces. Burning Sulfur creates Sulfur Oxides and mixed with the moisture in the air becomes an Acid. This reacts with the Copper to make a green stuff called Copper Sulfate. Or it was breathed on by some of the same people I know that eat a lot of Garlic and Onions.  Regardless of the reason, spending money to do anything about that would end up costing more than the coin is worth. |
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Valued Member
United States
333 Posts |
I have an otherwise nice, but ruined 1894 with quite a bit of verdigris on it. Eventually it will go through a round of olive oil treatments because the verdi-care just isn't doing it.
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Pillar of the Community
United States
8516 Posts |
I have a greenie too...  Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Valued Member
United States
236 Posts |
A little bit of Blue Ribbon oil will brobably stop it from getting worse and make it look better, but for the condition and date Just Carl is right...its just not worth it. Enjoy it for what its worth and don't buy wooden nickels unless you collect wooden nickels.
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Bedrock of the Community
Australia
21786 Posts |
Verdi-Care job.
Actually, copper sulfate is blue, and is highly water soluble, and would not stay on the coin. The green stuff would be verdigris, which can be extemely difficult to remove from a coin.
If it is only a subtle green shading as here, Verdi-Care can do it.
BadThad may be able to give us more of a clue.
I have seen a Roman Sestertius of Nero, with a very attractive green patina, which can actually enhance the appearance, and hence, the value.
Edited by sel_69l
05/03/2012 01:37 am
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Valued Member
 Canada
112 Posts |
What if I decide to clean this coin and find it not verdigris. and that it is actually toned. will cleaning remove the toning .
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Bedrock of the Community
United States
20753 Posts |
Quote:
What if I decide to clean this coin and find it not verdigris. and that it is actually toned. will cleaning remove the toning . Just remember that regardless of what you try using to so called clean any coin, there is always a cost of the products you try using. If such costs exceed the value of the coin, it is sort of a waste of money and time. Use that same money to buy a better conditioned coin. Quote:
Actually, copper sulfate is blue, and is highly water soluble, and would not stay on the coin. The green stuff would be verdigris, which can be extemely difficult to remove from a coin. If you look carefully you would notice that the coin does have a sort of Bluish tone. Copper Sulfate, formed from atmospheric conditions where other contaminates are present, has numerous different toning effects. Although true it is water soluable, once it becomes part of the metal of a coin, it does NOT just fall off. Regardless of what it is on that coin, unless you use something around the house, any expendature would end up costing more than the coin is worth. |
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Valued Member
Canada
112 Posts |
Thank you all for your comments . very helpful
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Bedrock of the Community
United States
10045 Posts |
I would leave it be--you can't remove that much verdigris without damaging it.
It's a "Fine details" coin and worth a few dollars in this condition.
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Valued Member
United States
126 Posts |
like the statue of liberty, copper turns green eventually. but it's a cool looking coin.
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Replies: 14 / Views: 1,731 |
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Posted 05/02/2012 1:30 pm
