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 Replies: 18 / Views: 23,419 |
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New Member
United States
11 Posts |
i have a 1975 d aluminum or silver penny do you know anything about these or there value   Moved to Modern US Varieties forum - Sap |
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Moderator
 United States
56855 Posts |
 to CCF. Can you weigh it? should be 3.11 grams. It's most likely coated in mercury. No added value if it is. John1  |
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New Member
 United States
11 Posts |
i have no way to weigh it at all is there a way to tell if its coated in mercury
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Pillar of the Community
United States
3592 Posts |
Weigh it first,speculate later.  |
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Rest in Peace
United States
10625 Posts |
I would not want to handle it if it were coated in mercury.
It could be the plating was stripped or it could be an unplated planchet?
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Valued Member
United States
385 Posts |
Drop it, if the tone differs in comparison with an ordinary copper penny, speculate it. If the tone is the same, well there you go. To tell if it's silver, drop something that's silver, it'll have a higher more sexier pitch.
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Pillar of the Community
United States
1151 Posts |
Couldn't be unplated, we didn't start using copper-over zinc until 1982
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Pillar of the Community
Canada
1610 Posts |
Quote:
it'll have a higher more sexier pitch. LOL, sexier pitch |
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Pillar of the Community
United States
1151 Posts |
That "sexier pitch" comment made my day!  |
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Pillar of the Community
United States
3345 Posts |
Quote:
It's most likely coated in mercury. mercury [hg] is liquid at room temperature. Probably zinc plated |
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Pillar of the Community
United States
1374 Posts |
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Bedrock of the Community
Australia
21786 Posts |
Interesting point!
I have quite a few coins that are plated with some sort of white metal, and I am sure that the surfaces are not mercury.
When I was a kid I had a lot of fun rubbing mercury on copper coins. That was before I contracted Minimata Disease! (not really)!
Actually, I don't think I have lost all of my mental marbles quite yet.
Seriously though, Mercury does not have any safe lower limit of exposure. I had no idea of that as a kid. I am well over 60 years old now. Fortunately, I don't seem to be affected.
Either way, if the coin is plated or has had mercury rubbed on, the ring tone when dropped should not be affected.
I don't ring when I am dropped. I yell! Coins DON'T yell.
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Valued Member
United States
424 Posts |
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New Member
United States
11 Posts |
it weighs 3.09 grams so its plated I'm guessing or coated
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Pillar of the Community
United States
1374 Posts |
Ah yes, I totally forgot that in High School chemistry we made gold and silver pennies. Of course, me being me, I took wheat pennies with me to class that day. And then I spent them. Would be too cool if one showed up on the forum, |
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New Member
United States
2 Posts |
I have one also it's a 1975D it weights 3.25. Don't think it's mercury however I've turned alt of copper to silver and gold. Sodium hydroxide and zink when boiled with copper the zink bonds to the copper making it appear silver then when heated with a flame will turn it bronze appears as gold this Is not zink. Whatever it is. It's shiny lol.
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Replies: 18 / Views: 23,419 |
Posted 12/17/2011 3:43 pm
