Featured Earrings how old?

Does not stick to a magnet

 

Not very. Quite modern. You can find those in many shops today.

 

I was going to say vintage Last Week. Less than 10 years old and probably less than five. The odds are they're pure costume.

 

Tuesday.

 

Agree with the above, although I am not too sure about tuesday.

That just means the metal it is made of is not magnetic. Many base metals don't stick to a magnet.

 

Only ferrous metals, i.e., ones with iron in them, will stick to a magnet. There is a whole type of jewellery known as 'Berlin Iron'. Apart from that, would think very little jewellery would be attracted by a magnet.

 

Yes, the so-called ferromagnetic metals, in jewellery that could be nickel as well. Some ethnic jewellery from western and central Asia sticks to a magnet, probably because of meteorite nickel content.

 

Now there's a fun fact to know & tell! We are stardust...& our jewellery is too.

 

Everything on this planet is, and the planet is. Cozmic!
Metal deposits found in the earth are partly of terrestrial origin, partly washed down from ancient meteorites.

 

The clasps on precious metal necklaces sometimes stick to magnets, due to the steel springs inside. I'm not sure what green gold would do with a rare earth magnet; I'm told it contains iron, or can.