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  1. #1
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    2018 Odd colored

    Found this odd colored penny today. It has an odd tint to it, kinda greenish, I found it interesting. Has anyone else run across one like it?
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  3. #2
    Moderator jfines69's Avatar
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    The beginnings of verdigris??? From our glossary -

    Verdigris: An undesirable greenish-blue deposit on Lincoln cents, verdigris is a variable chemical mixture of compounds, complexes and water. The primary components are copper salts of acetate, carbonate, chloride, formate, hydroxide and sulfate. The secondary components are other metallic salts, acids (organic and mineral), atmospheric gases and water. All the components are in an ever-changing and extremely sophisticated electrochemical reaction equilibrium that is dependent on the ambient environment. (Thanks to Thad Meszaras for this definition)


    That or it cam from Ireland
    Jim
    (A.K.A. Elmer Fudd) Be verwy verwy quiet... I'm hunting coins!!! Good Hunting!!!

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  5. #3
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    Lol, I know right, first one ive run across with that tint lol

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    Registered User GrumpyEd's Avatar
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    Has anyone else run across one like it?

    If you look at enough coins you'll see every color.

    I think real toning (as opposed to stains and corrosion) is light refracting through different thicknesses of different oxide layers.

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  9. #5
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    Yeah, i love the natural toning, its cool looking

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