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 Replies: 10 / Views: 1,360 |
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New Member
United States
0 Posts |
hi folks. New member looking for answers! I have a 1994-d Lincoln Cent, silver in color, slightly magnetic to a good magnet!I understand plating is easy! I dont believe this coin is plated. But what would or could you use to plate a penny with to make it magnetic? or, Do I have some sort of test penny that got out? I know about the 1974-d aluminum! The coin weighs 2.5g, accurate. nearly mint condition. ANYONE! please help me understand |
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Moderator
 United States
188952 Posts |
 to the Community! I moved your welcome post to the appropriate forum for the proper attention.  |
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Bedrock of the Community
United States
62064 Posts |
The only way it would be slightly attracted to a magnet is to be plated. I've seen that before on coins that were plated. Edited by coop
02/16/2016 11:56 am
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Bedrock of the Community
United States
12437 Posts |
The US Mint does not use any magnetic planchets with the exception of 1943 steel cents. Plating is the most likely explanation, nickel is commonly used for electroplating and pure nickel is magnetic. An off-metal planchet error would result in a weight discrepancy but plating adds a negligible amount of weight. |
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Bedrock of the Community
United States
17884 Posts |
Quote:
But what would or could you use to plate a penny with to make it magnetic? Nickel. Pure nickel is HIGHLY magnetic, but the amount plated onto the cent is so small that the weight of the cent nearly exceeds the magnetic attractiveness so the coin is only slightly magnetic. |
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Pillar of the Community
United States
724 Posts |
Nickel coin has 25% nickel in it but is not magnetic
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Moderator
United States
188952 Posts |
You should not compare a 25% nickel CuNi alloy to 100% nickel plating. I believe that the nickel composition in a CuNi alloy needs to be greater than 60~70% to be ferromagnetic.
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Rest in Peace
United States
17900 Posts |
If you could supply photos, that would help.
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Bedrock of the Community
United States
17884 Posts |
Nickel alloys normally lose their magnetic properties when the percentage of other metals exceeds I believe about 12%.
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Pillar of the Community
United States
6130 Posts |
Mercury can also make a coin magnetic, and I think is much easier to plate. I would be cautious with the coin for now--wash your hands after handling it, just in case.
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Bedrock of the Community
United States
17884 Posts |
Mercury will NOT make a coin magnetic.
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Replies: 10 / Views: 1,360 |
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Posted 02/16/2016 11:56 am
