Are nickel coins made of copper?
Excuse me, I was wondering if you could clarify something for me. The paragraph I'm reading mentions nickel coins, but it doesn't explicitly state what they're made of. Could you please tell me, are nickel coins actually made of copper, or is there some other material involved in their composition? I'm trying to get a better understanding of the metallurgy behind these coins and how they're produced. Thank you for your time and assistance.