How do I know my 1968 Canadian quarter is silver? [solved]

5 posts
KLiao
Joined: 6 Jan 2019
Posts: 656
Posted: 3 Apr 2019, 01:39 #
Posted: #
Hello,

I bought a 1968 quarter for 50 cents at a estate sale on a chance for it to be silver. It looked silver to me. It seems like there are 2 versions one is silver one is not. The catalogue says to test with a magnet but the non silver ones are made of nickel which also doesn’t stick to a magnet so I’m lost. Please help.
harryg
Closed account
Posted: 3 Apr 2019, 01:59 #
Posted: #
The magnet WILL indeed stick to the nickel coin. Also there is a weight difference. Silver 5.83g , nickel 5.05g.
KLiao
Joined: 6 Jan 2019
Posts: 656
Posted: 3 Apr 2019, 02:08 #
Posted: #
Ok so mine is silver. But the nickel ones has to have some steel to stick to magnet
Status changed to Solved (KLiao, 3 Apr 2019, 02:08)
harryg
Closed account
Posted: 3 Apr 2019, 02:13 #
Posted: #
It depends on how much nickel is in the coin. The U.S. coin has too much copper to Nickel. Not so with the 1968 Canadian Quarter.
https://terpconnect.umd.edu/~wbreslyn/magnets/is-nickel-magnetic.html
Mr. Midnight Catalogue referee
Joined: 10 Mar 2017
Posts: 4332
Posted: 3 Apr 2019, 02:39 #
Posted: #
true.
fact -pure nickel is magnetic, just like iron.

copper-nickel alloy gets less magnetic as the copper content increases. at 30%nickel/70% copper ther is no hint of magnetism.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
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