Greenies

[jsandin]

Is it my imagination, or do Indian Head pennies turn green more readily than other pennies?

 

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[jeff of pa]

no not your imigination.
must be their content

 

[davew0710]

Or their age, copper does turn get a patina over time. I get some zincolns that turn green incredible fast. But the zilcon green is more a deterioration of the coin rather than patina.

 

[BuckleBoy]

Well, after 1863 they are Bronze--rather than copper (Large Cents and Half Cents), copper-nickel (FE's and CW years IH's), or copper-zinc (Post-WWII wheats).


I have found a good many pre-WW II wheaties that were greenies as well.


But it also depends on the soil type.