1982 Copper vs Zinc Penny
 

Hi,
Can anyone tell me how to tell the difference between Zinc and Copper
pennies?
TIA
Barry Schell

1982 Copper vs Zinc Penny
 

One way to tell is by the date. 1981 and prior years are copper. 1983 and future years are zinc. But I'll bet you mean how to tell the difference with 1982 pennies.

The only way to tell is by weight. The copper weighs about 3.11 grams and the zinc weighs about 2.5 grams. You need a very sensitive scale to measure these.

Bob
"Barry & Barb" wrote in message ...
Hi,
Can anyone tell me how to tell the difference between Zinc and Copper
pennies?
TIA
Barry Schell




------------------------------------------------------------------------------

1982 Copper vs Zinc Penny
 

Bob and Dee wrote:
Can anyone tell me how to tell the difference between Zinc and
Copper pennies?

The only way to tell is by weight. The copper weighs about 3.11 grams
and the zinc weighs about 2.5 grams. You need a very sensitive scale
to measure these.

Not at all -- you can do it with a pencil and a popsicle stick.

--
Bob

1982 Copper vs Zinc Penny
 

e wrote:
Not at all -- you can do it with a pencil and a popsicle stick.

hey, i invented that!

Yeah, but I beat you to the patent office!

--
Bob

1982 Copper vs Zinc Penny
 

On Thu, 27 Oct 2005 19:41:53 -0700, "Bob Flaminio"
wrote:

Bob and Dee wrote:
Can anyone tell me how to tell the difference between Zinc and
Copper pennies?

The only way to tell is by weight. The copper weighs about 3.11 grams
and the zinc weighs about 2.5 grams. You need a very sensitive scale
to measure these.

Not at all -- you can do it with a pencil and a popsicle stick.

They also make different sounds when dropped on a hard surface.

1982 Copper vs Zinc Penny
 

"Phil DeMayo" wrote in message
news:1130471413.841fef97e10692372107a14b4d4048ec@t eranews...
On Thu, 27 Oct 2005 19:41:53 -0700, "Bob Flaminio"
wrote:

Bob and Dee wrote:
Can anyone tell me how to tell the difference between Zinc and
Copper pennies?

The only way to tell is by weight. The copper weighs about 3.11 grams
and the zinc weighs about 2.5 grams. You need a very sensitive scale
to measure these.

Not at all -- you can do it with a pencil and a popsicle stick.

They also make different sounds when dropped on a hard surface.


Zinc will melt at 787 degrees F but copper melts at 1981 degrees F

Dale ;-)

1982 Copper vs Zinc Penny
 

On Thu, 27 Oct 2005 23:00:54 -0500, "Dale Hallmark"
wrote:


"Phil DeMayo" wrote in message
news:1130471413.841fef97e10692372107a14b4d4048ec@ teranews...
On Thu, 27 Oct 2005 19:41:53 -0700, "Bob Flaminio"
wrote:

Bob and Dee wrote:
Can anyone tell me how to tell the difference between Zinc and
Copper pennies?

The only way to tell is by weight. The copper weighs about 3.11 grams
and the zinc weighs about 2.5 grams. You need a very sensitive scale
to measure these.

Not at all -- you can do it with a pencil and a popsicle stick.

They also make different sounds when dropped on a hard surface.


Zinc will melt at 787 degrees F but copper melts at 1981 degrees F

Dale ;-)


If you cut them in half the zinc ones won't have copper inside ;-)

1982 Copper vs Zinc Penny
 

On Thu, 27 Oct 2005 23:00:54 -0500, "Dale Hallmark"
wrote:


"Phil DeMayo" wrote in message
news:1130471413.841fef97e10692372107a14b4d4048ec@ teranews...
On Thu, 27 Oct 2005 19:41:53 -0700, "Bob Flaminio"
wrote:

Bob and Dee wrote:
Can anyone tell me how to tell the difference between Zinc and
Copper pennies?

The only way to tell is by weight. The copper weighs about 3.11 grams
and the zinc weighs about 2.5 grams. You need a very sensitive scale
to measure these.

Not at all -- you can do it with a pencil and a popsicle stick.

They also make different sounds when dropped on a hard surface.


Zinc will melt at 787 degrees F but copper melts at 1981 degrees F

Hmmm--I wonder what would happen if you heated a Zlincoln above the
melting point of the zinc, but below the melting point of the copper
coating.

take care,
Scott

1982 Copper vs Zinc Penny
 

Scott Stevenson wrote:
...

Hmmm--I wonder what would happen if you heated a Zlincoln above the
melting point of the zinc, but below the melting point of the copper
coating.

take care,
Scott

the zinc oozes out.

i once melted about 100 post-'82s to make a big blob of zinc that i
brought to my work office. everyone wanted to play with it!

ras

1982 Copper vs Zinc Penny
 

Barry & Barb wrote:
Hi,
Can anyone tell me how to tell the difference between Zinc and Copper
pennies?
TIA
Barry Schell



------------------------------------------------------------------------


I balance the penny on the tip of my finger and tap it with a piece of
metal such as the tip of a scissor. If it rings, it is copper. "Thunk"
it is zinc.