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Author Topic: Chemical composition of a new penny  (Read 3133 times)

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Chemical composition of a new penny
« on: February 06, 2005, 01:01:49 PM »

 ??? Does any one know what the chemical compositon of a new penny is?  And how it differs from an older one besides the copper.


  • Guest
Re:Chemical composition of a new penny
« Reply #1 on: February 06, 2005, 03:40:54 PM »

I don't know what you mean by besides the copper?

Around 1982, the US government found that copper was too expensive for a penny.  They went coating zinc with copper.  Just give the edge of a penny a scrap with a file and you will see the zinc on the inside.  

By the way, this wasn't the first time the penny changed - WWII the copper was removed for a time because of the war effort.

savoy out

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