Aug 20, 2012, 02:25 AM
hey there, peekaboo i see you
yay everyone. I found a 1982 penny in my roll today, this is only my 4th roll of pennies, but I'm not sure if it's copper or not. how do i know if the penny i got aint copper or is copper. thanks to all you krazy kopper kids in advance, auto parts.
Aug 20, 2012, 06:04 AM
Weigh it is the best option. 3.1 Grams or so is copper. 2.7 or so is zinc. Of course you have to use a scale accurate to a tenth of a gram.
Aug 20, 2012, 07:27 AM
Bounce it off of a hard surface and listen. If it rings it's copper. If it clunks it's a zincoln.
Aug 20, 2012, 08:22 AM
just save all cents 1981 and older so you know they are copper 100% of the time.
Aug 20, 2012, 12:26 PM
Actually its usually 3.11g for copper, 2.50g on zinc. I find about 75% of 1982s are copper. A $10 gram/grains scale at Harbor Freight can easily tell the difference.
Originally Posted by Numismaniac
Aug 20, 2012, 03:56 PM
I have an old balance scale... Put a new penny on one side & see which is heavier. Piece of cake!