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1990 Lincoln Error. Magnetic

 
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 Posted 03/06/2017  01:31 am Show Profile   Bookmark this topic Add makescents9 to your friends list Get a Link to this Message
This penny is magnetic and looks as its steel in color. Any value 1990 d LMC
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 Posted 03/06/2017  01:36 am  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
Probably coated with nickel or chromium, even electroplated...sold as novelties is considered as altered and has value of $.01. At least you won't see the zinc rot!


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 Posted 03/06/2017  01:45 am  Show Profile   Check spruett001's eBay Listings Bookmark this reply Add spruett001 to your friends list Get a Link to this Reply
Even if it was nickel-plated it shouldn't be attracted by a normal or even decent strength magnet. I am very skeptical that it is some sort of error, however.

Can you post pics of both sides of the coin and get a weight (at least to the tenth of a gram)?
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 Posted 03/06/2017  09:47 am  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
Strongly magnetic or weakly magnetic?
Gary Schmidt
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 Posted 03/06/2017  09:51 am  Show Profile   Check nss-52's eBay Listings Bookmark this reply Add nss-52 to your friends list Get a Link to this Reply
How about a good photo or two?
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 Posted 03/06/2017  11:08 am  Show Profile   Bookmark this reply Add oldmike to your friends list Get a Link to this Reply
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 Posted 03/06/2017  12:22 pm  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply

Quote:
Even if it was nickel-plated it shouldn't be attracted by a normal or even decent strength magnet

Nickel is indeed ferromagnetic.
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 Posted 03/06/2017  3:55 pm  Show Profile   Check spruett001's eBay Listings Bookmark this reply Add spruett001 to your friends list Get a Link to this Reply
My understanding is that it takes a more substantial amount of nickel to react.

Is that not why a nickel is not attracted or is it because it's an alloy?
Tantum religio potuit suadere malorum.
-Lucretius
"Just because you're paranoid don't mean they're not after you."
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My Want List: http://goccf.com/t/282022
Edited by spruett001
03/06/2017 4:30 pm
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 Posted 03/06/2017  4:53 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Alloy. There is 75% copper in a nickel. So it is not attracted to a magnet. So many ways to alter coins, Check Youtube on how to turn the colors.
Richard S. Cooper
Some have asked about my images I use and I'm glad to say, you can now you can see the DVD in sections on youtube:
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Jefferson nickel doubled dies Wexler/Rebar complete listings

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 Posted 03/06/2017  9:27 pm  Show Profile   Check spruett001's eBay Listings Bookmark this reply Add spruett001 to your friends list Get a Link to this Reply
My main question is considering a nickel is 25% nickel and non-magnetic, how would nickel plating (presumably less than 25% of the total composition) make a cent magnetic?

Does it being an alloy change the nickel's properties as opposed to a pure nickel surface plating?
Tantum religio potuit suadere malorum.
-Lucretius
"Just because you're paranoid don't mean they're not after you."
-Kurdt Kobain
My Want List: http://goccf.com/t/282022
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 Posted 03/06/2017  9:32 pm  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
Spruett, nickel is slightly magnetic, had same question my self, yes it is. Cant remember where I was sent but it is. When in nickels, the weight of the other metals counters the effect.


I have a 1945 penny that is shiny silver coated, but only slightly magnetic. The same magnet will grab a steelie from 2", this 1961D is not magnetic at all.



Edited by Crazyb0
03/06/2017 9:43 pm
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 Posted 03/06/2017  11:50 pm  Show Profile   Check spruett001's eBay Listings Bookmark this reply Add spruett001 to your friends list Get a Link to this Reply
That helps. I have a pure nickel world coin that is very magnetic but the only silverish-plated cents I have are '43s so they're obviously gonna stick.

So, I guess your '45 is nickel-plated and the '61 is chromium (or silver)? I know chromium is diamagnetic at normal temperatures and paramagnetic at higher temps.
Tantum religio potuit suadere malorum.
-Lucretius
"Just because you're paranoid don't mean they're not after you."
-Kurdt Kobain
My Want List: http://goccf.com/t/282022
Edited by spruett001
03/07/2017 12:58 am
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 Posted 03/07/2017  11:36 am  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply

Quote:
how would nickel plating (presumably less than 25% of the total composition) make a cent magnetic?

The plating would be pure nickel so the composition of the coin itself would have no bearing on the magnetic properties of the nickel plating.
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 Posted 03/07/2017  1:46 pm  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
Pure Nickel is STRONGLY magnetic so a thin layer of pure nickel on a plated coin is enough to allow it to be attracted to a magnet but the attraction will be WEAK. That is because that plating has to carry the weight of the rest of the coin along with it.

When Nickel is alloyed with other metals it loses its magnetic properties when the other metals reach about 11% of the alloy. So a 95% nickel alloy would still be magnetic and a 90% nickel alloy would be weak or non-magnetic. Out circulation coins are only 25% nickel so are clearly non-magnetic.

If you have some Canadian five, ten or twenty five cent pieces from 1969 to 1981 they are pure nickel. Check and see how strongly magnetic they are.
Gary Schmidt
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 Posted 03/07/2017  2:18 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Good answer Condor101. I made an image so you don't have to re-type that again.
Richard S. Cooper
Some have asked about my images I use and I'm glad to say, you can now you can see the DVD in sections on youtube:
1. Intro, older coins, toned coins 2. Doubled dies 3. Die events, One of a kind errors 4. So called errors, Coin information 5. Coin information Types and Varieties, Overlays
Jefferson nickel doubled dies Wexler/Rebar complete listings

trail dies:http://www.traildies.com/
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 Posted 03/08/2017  09:24 am  Show Profile   Check nss-52's eBay Listings Bookmark this reply Add nss-52 to your friends list Get a Link to this Reply
Should have proof read it first....

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