1982 Lincoln Penny..weighs more then my other 1982's???

I found a 1982 Lincoln Penny in a penny roll today, and it weighs more then my other 1982's, all the other ones weigh from 2.3 to 2.6 or so, this one weighs 3.10...why is that???

 

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1982 is a transition year. Hopefully this will help. BTW, your coin is a large date.
http://www.lincolncentresource.com/smalldates/1982.html

 

Welcome to coin talk the 1982 large dates supposed to weigh 3.10 grams and the others are zink that you have. I'll let the experts chime in.

 

Thank you so much, that was very helpful

 

You are welcome! Also, welcome to CT.

 

Thank you

 

Thank you

 

Just as others have said, 1982 was the transition year between a 95% copper 5% zinc composition, and a 97.5% zinc 2.5% copper composition. Copper is more dense than zinc, so even though the coins are the same size, they weigh differently.

 

It's the small date denver copper that you need to look out for

 

Thank you

 

Is it possible to get a little more information on this please?

 

OK ignore this.^^^^^^

There are large dates from Philly and Denver that are made both out of copper and zinc. Copper weighing 3.1 and zinc weighing 2.5
There are small dates from Philly in both copper and zinc.
And there are small dates from Denver made in zinc only.
Since Denver only made the small dates in zinc, the 2 small dates that have been found from 1982 from Denver, on copper are very valuable.

 

Sorry I agree with Michael k

 

Thank you all so much