Review on π Ferrous Keychain Magnet Test for Improved Hanging by Antonio Bacon
Mighty Magnet! for Industrial Magnets
This is the perfect little magnet. It is so strong that I call it "my strong magnet". Too bad it's not cute and colorful. I've just received the second one I bought and I like it a lot but I still think they should be in nice colors. π€
- Identify counterfeit/plated jewelry, often made from steel or nickel alloys as the base material (some alloys such as nickel silver and cupro-nickel are non-magnetic despite the presence of ferrous metals). Typically, the magnet test is only the first test performed before the density and acid tests.
- Not sure
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