Well today, I went there to buy it and this time, I’ve meet with the owner of the store. At first, He wanted to sell the coin for 20 cents just because it said “20″ on it. I negotiated with him to offer it for 10 cents since the Mexican currency is less valuable than the Canadian dollar. Then, He agreed with the deal.
Later at my home, I checked with a small neodymium magnet and I discovered that the coin sticks to the magnet but the magnetic force is medium. I also checked with a ferrite magnet but the coin only sticks to it a little bit and if you shake the magnet gently, the coin will fall off which means that the magnetic force is small.
I’ve checked online about the real composition of the coin and here are the information:
Since the coin is 72% silver, I was thinking if the other 28% percent is iron, steel or nickel which may explains why the coin is a little bit magnetic?
Does anyone else have the 1942 Mexican 20 centavos coin that is magnetic just like mine?
Here’s another test that I’ve made which is the “Ping” test. I flipped a 2011 Canadian steel penny and a 1980 Canadian nickel made out of pure nickel which are magnetic and saw that steel and nickel don’t do the ping sound. When I flipped the 1942 Mexican coin, it does the ping sound. It is pretty weird…
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