Riddle me this..1977 Canadian dime

Discussion in 'Coin Chat' started by Martha Lynn, Nov 24, 2020.

  1. Martha Lynn

    Martha Lynn Well-Known Member

    I found a Canadian dime in my change, and searched for info about it on Canadian coin sites. Weight is supposed to be 2.07 gr. and the composition is 100 % nickel. Also states the coin is magnetic. My dime weighs 2.09 so am good there. It is also magnetic. How can it be magnetic if 100 % nickel ? The nickel ore is not magnetic. Our coins with nickel are not magnetic. What gives ? thnx WIN_20201124_16_20_02_Pro.jpg WIN_20201124_16_20_36_Pro.jpg
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  3. Detecting Daddy

    Detecting Daddy New Member

  4. Heavymetal

    Heavymetal Supporter! Supporter

    100% nickel is very magnetic.
    When alloyed with copper, as US 5 cent coins have been since they were begun in 1866,they are not magnetic . 80% copper, 20% nickel, 5 grams weight total
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  5. Kentucky

    Kentucky Supporter! Supporter

    Nickel is not only magnetic, it is ferromagnetic. The ferro- part kind of means iron, but it also means very magnetic.
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  6. Michael K

    Michael K Well-Known Member

    Those nickel dimes jump onto even a weak refrigerator magnet.
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  7. Martha Lynn

    Martha Lynn Well-Known Member

    Thank you all very much....martha
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  8. Conder101

    Conder101 Numismatist

    As mentioned pure nickel is highly magnetic. When alloyed with other metals it will retain some magnetic attraction until the other metal reaches somewhere around 11% of the composition then it loses its magnetic properties. Out copper nickel coins are 75% copper and 75% is much greater than 11%, so our coins aren't magnetic.
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