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Any help on what this is on this 1946 wheat cent.

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    Shane6596Shane6596 Posts: 759 ✭✭✭✭✭

    Yep, searched thru about 15,000 pennies over past 3 weeks. Seen alot of that. Nothing special. My kids call it "crud"

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    @Shane6596 said:
    Yep, searched thru about 15,000 pennies over past 3 weeks. Seen alot of that. Nothing special. My kids call it "crud"

    It isn't crud nor is it dirt. Maybe environmental damage.

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    Shane6596Shane6596 Posts: 759 ✭✭✭✭✭

    @chrism210 said:

    @Shane6596 said:
    Yep, searched thru about 15,000 pennies over past 3 weeks. Seen alot of that. Nothing special. My kids call it "crud"

    It isn't crud nor is it dirt. Maybe environmental damage.

    Yes, corrosion or environmental damage. My kids call it "crud".

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    @chrism210 said:

    @Shane6596 said:
    Yep, searched thru about 15,000 pennies over past 3 weeks. Seen alot of that. Nothing special. My kids call it "crud"

    It isn't crud nor is it dirt. Maybe environmental damage.

    As much as you seen to enjoy pennies with crud, it isn't crud.

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    ifthevamzarockinifthevamzarockin Posts: 8,498 ✭✭✭✭✭

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    You seem to not like the answer you were given that it's corrosion/environmental damage.
    Then you imply that the person that responded is not qualified to respond. "that'll have a person with a bit more knowledge."
    You claim to want respectful replies but you are not respectful with your replies. :/

    One question: Do you think it left the mint that way?

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    CaptHenwayCaptHenway Posts: 31,563 ✭✭✭✭✭

    Corrosion. It ain't coming off.

    Numismatist. 50 year member ANA. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and Lifetime Achievement Award 2020. Winner numerous NLG Literary Awards.
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    coinbufcoinbuf Posts: 10,769 ✭✭✭✭✭
    edited February 17, 2023 3:51PM

    I wonder if this fellow is related to whiskey tango foxtrot. ;)

    My Lincoln Registry
    My Collection of Old Holders

    Never a slave to one plastic brand will I ever be.
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    Shane6596Shane6596 Posts: 759 ✭✭✭✭✭
    edited February 17, 2023 3:57PM

    How many accounts does EZV have?

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    DeplorableDanDeplorableDan Posts: 2,552 ✭✭✭✭✭

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    Another forum that'll have a person with more knowledge? You do realize that comment has 9 other "agrees" from knowledgeable numismatists right? Good luck posting your garbage on reddit, I'm sure you'll find some other boob there that will cosign your misguided opinion.

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    FrazFraz Posts: 1,861 ✭✭✭✭✭

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    The hobbyists at NGC will know much more about your corn, they can assess it’s value instantly, and tell you what you can do with it.
    You’re welcome, bye bye.

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    rickoricko Posts: 98,724 ✭✭✭✭✭

    @chrism210... Your coin clearly has environmental damage. This forum has world leaders in most areas of numismatics as active members. Since you choose to disparage their advice, your decision to go elsewhere is a good decision. Cheers, RickO

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    jmlanzafjmlanzaf Posts: 31,989 ✭✭✭✭✭

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    This is simply not true. MOST corrosion on copper like corrosion on iron (called rust) results in the addition of material on the surface. The surface isn't eaten away by oxidation, it requires a harsher environment (e.g. acid) for the surface to actually be eaten away.

    The presence of a green ADDITION to the surface is incredibly common and well known. It is called "patina" in the ancient coin world.

    I'm a Ph.D. chemist, by the way, so feel free to question my lack of knowledge about the oxidation process of metals.

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    ifthevamzarockinifthevamzarockin Posts: 8,498 ✭✭✭✭✭

    @jmlanzaf said:
    This is simply not true. MOST corrosion on copper like corrosion on iron (called rust) results in the addition of material on the surface. The surface isn't eaten away by oxidation, it requires a harsher environment (e.g. acid) for the surface to actually be eaten away.

    Are you sure? :D:D:D>:)

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    FredWeinbergFredWeinberg Posts: 5,724 ✭✭✭✭✭

    “A forum with a bit more knowledge” -the funniest line I’ve heard so far this morning

    Can’t wait for the OP to post the exact same comment when he goes over to the NGC form for their comments and observations

    Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors
    for PCGS. A 49+-Year PNG Member...A full numismatist since 1972, retired in 2022
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    FrazFraz Posts: 1,861 ✭✭✭✭✭

    @jmlanzaf said:

    I'm a Ph.D. chemist, by the way, so feel free to question my lack of knowledge about the oxidation process of metals.

    OP knows crud, though.

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    jmlanzafjmlanzaf Posts: 31,989 ✭✭✭✭✭

    @Fraz said:

    @jmlanzaf said:

    I'm a Ph.D. chemist, by the way, so feel free to question my lack of knowledge about the oxidation process of metals.

    OP knows crud, though.

    Or does he....? ;)

    It's not clear he's ever seen rust PUSHING THROUGH the paint...

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    Shane6596Shane6596 Posts: 759 ✭✭✭✭✭

    I dont know how you guys do it that have been here for years. Dealing with these types of questions over and over.

    Ive been here a month and seen about 5 or 6 people that just seem to want to stir up some drama.

    I didnt realize a coin forum was a hotbed for trolls :D

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    FrazFraz Posts: 1,861 ✭✭✭✭✭

    @Fraz said:
    OP knows crud, though.

    @jmlanzaf said:
    Or does he....? ;)

    Dunno, but I was speaking figuratively.

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    MarkKelleyMarkKelley Posts: 1,764 ✭✭✭✭✭

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    I'm sorry this wasn't the answer you wanted and I'm sure that if you look around you can find someone with more knowledge than I. However, if they give you a different answer then it will be the WRONG answer. There is only one truth.

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    dsessomdsessom Posts: 2,212 ✭✭✭✭✭

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    This is incorrect. Copper is highly reactive and will oxidize rapidly, and form a patina without being "eaten away". Early stages look green, and later stages turn brown to black. Oxidation of copper can come from air, or water, or both.
    Interestingly, copper does NOT react with acids in general. Only very strong nitric or sulfuric acid will cause copper to react.

    So, best guess is that somehow, that discolored spot sat in water for an extended period at some point, causing it to oxidize. This information doesn't come from a numismatist, it comes from a biological chemist.

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    dsessomdsessom Posts: 2,212 ✭✭✭✭✭

    @jmlanzaf said:

    @chrism210 said:

    @MarkKelley said:
    Corrosion/environmental damage.

    I don't know but corrosion on cooper usually will cause the copper to be eaten away an there's no appearance of that at all. It isn't dirt or any type of crud. Maybe another forum that'll have a person with a bit more knowledge. Anyhow, thanks

    This is simply not true. MOST corrosion on copper like corrosion on iron (called rust) results in the addition of material on the surface. The surface isn't eaten away by oxidation, it requires a harsher environment (e.g. acid) for the surface to actually be eaten away.

    The presence of a green ADDITION to the surface is incredibly common and well known. It is called "patina" in the ancient coin world.

    I'm a Ph.D. chemist, by the way, so feel free to question my lack of knowledge about the oxidation process of metals.

    Maybe we should just tell him "IT WAS ALIENS!"

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    Shane6596Shane6596 Posts: 759 ✭✭✭✭✭

    Isnt the statue of liberty copper? It doesnt look eaten away.

    They use copper for roofs and awnings, seems to last forever.

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    MasonGMasonG Posts: 6,268 ✭✭✭✭✭

    @dsessom said:
    Maybe we should just tell him "IT WAS ALIENS!"

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    dsessomdsessom Posts: 2,212 ✭✭✭✭✭

    @MasonG I'm glad I'm not the only nerd here! I was hoping someone would appreciate that reference! :D

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    ifthevamzarockinifthevamzarockin Posts: 8,498 ✭✭✭✭✭

    @chrism210 "it isn't crud."

    CRUD CRUD CRUD CRUD CRUD CRUD CRUD CRUD CRUD

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    Steven59Steven59 Posts: 8,294 ✭✭✭✭✭

    Black areas develop on copper Lincolns - Quit your bitching/degrading forum members and just take it as such............ if you search Lincoln Cents long enough you will see it often enough......

    "When they can't find anything wrong with you, they create it!"

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    jonathanbjonathanb Posts: 3,428 ✭✭✭✭✭

    Oxidation MEANS the addition of oxygen, although the term can be applied to the addition of some other elements like sulfur also. So at the atomic level, oxidation always means the addition of something.

    The catch is how that something gets added.

    Oxidized copper adheres to the original surface. Coin collectors know this. That's another way of saying that corrosion can't be removed easily from copper. Eventually all of the original copper is covered by oxidation. Further oxidation stops at that point and the surface remains stable, as on the Statue of Liberty.

    Oxidized iron disrupts the original surface and flakes off. That process keeps exposing a new surface that then oxidizes and also flakes off, etc.

    Collectors of Zincolns know that zinc oxidizes similar to iron, not similar to copper.

    https://courses.lumenlearning.com/suny-chem-atoms-first/chapter/corrosion/

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    emeraldATVemeraldATV Posts: 4,060 ✭✭✭✭✭

    What exactly do you see other than crud?
    The crud could be , makeup, tarnish, or even 1946 toothpaste.
    Makeup in those days could have had clay as a base.
    What do you see in that crud ?
    Relax and help us understand your theory.
    Cool ?

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