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 Replies: 16 / Views: 4,127 |
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Pillar of the Community
United States
632 Posts |
Canadian cents 1996 and earlier are 98% copper, compared to our 95% copper cents.
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Pillar of the Community
 United States
2424 Posts |
then why do they sound SO different when you PING them? they sound like zinc...
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Pillar of the Community
United States
2049 Posts |
Years Weight Copper%
1920-1941 3.24 95.50%
1942-1979 3.24 98.00%
1980-1981 2.80 98.00%
1982-1996 2.50 98.00%
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Pillar of the Community
United States
632 Posts |
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Valued Member
Canada
223 Posts |
They have changed composition & weight a few times...
1982--1996 2.5 g 19.1 mm, 12-sided 98% copper, 1.75% tin, 0.25% zinc
1980--1981 2.8 g 19.0 mm, round 98% copper, 1.75% tin, 0.25% zinc
1978--1979 3.24 g 19.05 mm, round 98% copper, 1.75% tin, 0.25% zinc
1942--1977 3.24 g 19.05 mm, round 98% copper, 0.5% tin, 1.5% zinc
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Pillar of the Community
United States
2424 Posts |
right but why do they feel so much more flimsy compared to lincoln cents? even with more copper content?
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Pillar of the Community
United States
959 Posts |
Willy13:
Love your explanation.
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Pillar of the Community
United States
1116 Posts |
While I don't have a lot of the Canadian coppers I do seperate them down by the image of the queen on the face (from young to old).
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Valued Member
United States
417 Posts |
May you should start filling Canadian penny folder's since they are dropping them soon.
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Pillar of the Community
United States
1770 Posts |
yea the ones made after 1997 feel like cheap tokens I only used to save the ones before 1982 guess I was so used to the Lincoln Cent I just went with the same yrs haha |
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Pillar of the Community
United States
2424 Posts |
so no one can explain why they ping differently? makes me think they arent really copper?
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Moderator
 Canada
10463 Posts |
Seriously? "Aren't really copper?" Because "pinging them" is an accepted form of accurate compositional analysis? Perhaps they were struck under different pressure?
Sheesh - perhaps I should put a few under the XRF in my lab at work, and prove to you that Canadian 1-cent coins are what snek says they are (and published in the literature). Then, if still you don't believe it, well then you can argue with the laws of physics....
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
Canada
2783 Posts |
SPP, come on, tell the truth, you have NOT actually been x-raying all those coins sent to you... you've just been bouncing them off the kitchen table now haven't you  Edited by Wade
04/11/2012 8:50 pm
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Moderator
Australia
16872 Posts |
The sound a coin makes when, er, "pinged", is generated by the coin flexing and vibrating back and forth. A coin's ability to do this depends on a multitude of interdependent variables - diameter, thickness, weight, edge shape, composition, microcrystalline structure... in short, Canadian and American 1 cent coins sound different because they are different, in most of the factors I've just mentioned. But in terms of your original question... Quote:i have them sitting around and am wondering if I can just roll them in with my LMC coppers.... I suppose it all depends on what you're rolling the coins for. If they're "bullion rolls", where weight and consistency of metal composition is important, then no, don't include them, because their composition and weight are not the same. If you're rolling them up for sale, then no again; finding lots of Canadian coins will probably make your customers mad. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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Pillar of the Community
Canada
838 Posts |
Reading this thread has started to make me wonder... do pre-82 Lincolns really contain any Copper?  Just kidding... SDcoinguy, which dates are you pinging that sound quite different? As was pointed out, the 82-96 series is a very different weight/shape. Admittedly, these are pretty flimsy looking/feeling, but still 98%. Also, in (mild) defense of our current 1997 to present "token-like" cents, the zinc plancets we use are from the same batch as the U.S. mint (so I have heard... I may stand corrected). And I think our copper-plated steel cents make for a bit nicer finish than the zinc ones. It's hard to tell by sight alone that they are not copper. One more light-hearted jab: I tried "pinging" the statue of Liberty when I visited NYC, but it just went "thud". |
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Posted 04/07/2012 8:13 pm
