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Steel 2017 d penny?

Greg311Greg311 Posts: 2 ✭
in Q & A Forum

Has anyone seen this before and why does it look like this?

Comments

  • JimnightJimnight Posts: 10,846 ✭✭✭✭✭
    edited December 14, 2019 2:44AM

    Sometimes high heat will turn them a silver color. Of course there are other reason which I'm sure you will hear about.

  • KliaoKliao Posts: 5,572 ✭✭✭✭✭

    Does it stick to a magnet? If yes steel, If no, PMD

    Collector
    75 Positive BST transactions buying and selling with 45 members and counting!
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  • HemisphericalHemispherical Posts: 9,370 ✭✭✭✭✭

    Welcome to the CU forums @Greg311.

    Copper layer has been removed. Your looking at the zinc core.

    Back in the day when science experiments were done in school. Now the internet is the teacher.......

    https://sciencewithscreens.blogspot.com/2016/08/experiment-59-stripping-copper-coating.html

  • Namvet69Namvet69 Posts: 9,010 ✭✭✭✭✭

    Yup, that outer layer of copper is mighty thin.

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