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Magnetic - Cobalt, iron, nickel, neodymium, samarium, and gadolinium. Non-magnetic - Gold, silver, brass, copper, zinc, aluminum, pewter. Slightly Magnetic - Rhodium (nickel free & hypoallergenic). I can only narrow it down for you by the magnetic quality of it.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.