siliconshaman: black cat against the moon (0)
siliconshaman ([personal profile] siliconshaman) wrote in [personal profile] kengr 2020-09-21 01:03 am (UTC)

I suspect then it was probably a Copper/niobium alloy. Copper by itself isn't magnetic, and niobium is too reactive to oxygen, but an alloy of both is the only non-oxidising gold-coloured alloy with paramagnetic properties I can find,

Also, it's dirt cheap.


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