Big Asian coins

Цитата: minorThanks for the answers.
 now I certainly will  melt them  
 my wife wants some new earrings for x-mas
Best
Torben

Цитата: Andrey

Цитата: minorThanks for the answers.
 now I certainly will  melt them  
 my wife wants some new earrings for x-mas
Best
Torben

Your wife might be unhappy with these earrings since such fakes are most often not silver. Test your pieces with a magnet (silver does not react to a magnet).

“I've tried with the magnetic they do not respond but it necessary not makes them to silver” - quoting someone, anyone, since the information collectors need about this topis seems to be lost in the mist of time, so here is what I say about magnets and silver:
 

Silver and other precious metals are not magnetic, right - but they do react to magnets! Iron klicks onto some magnetized metal with a loud ‘klink’ and then it is stuck, you may shove it sideways but strong magnets keep iron/steel in an..iron fist. Now, if you make ourselves a 25 cm (10 inches) long ‘runway’ with quite strong, at least not weak, magnets at the ‘floor’ of the runway and raise it to 30 - 45 degrees, real silver slides very slowly down this path with magnets underneath (cover them with some thin, non-sticky paper so as not to hurt the coins). Then try the same thing with a cupro/Nordic silver/anything not silver-coin more or less as big as the silver coin that slowed down over magnets, and the non-silver coins get up to visibly higher speed before hitting the bottom of this handmade testing thing. Thing is that silver (and to some degree, all precious metals including gold) reacts with the magnetic FIELD and this reaction slows pure silver down to a crawl where a modern non-silver coin would accelerate. The magnets create an electric field that interacts with non-magnetic metals like silver, but silver coins still respond to the magnetic field. I made a short, slow motion video years ago where this effect is shown so all can see that it is NOT a subjective interpretation of the coins sliding down this runway - it is VERY obious what is silver and what is not. This functions best when you have strong magnets all the way beneath the sliding path - and pure silver reacts to the electricity field stronger than less pure coins. Still, this trick can be used even on the ‘Swedish silver’ (40% pure!) used in all non-copper coins up until 1968 from 1920 (before that 80% was the norm). So it is easy and possible to use magnets to find out if you have silver coins or something else.

- regards, G.A.Moi

Hello and welcome to the Forum.  You're describing diamagnetism. Copper also has this property.  Also aluminum.  Gold not so much.  I've published here videos and stills showing this and how the rate of sliding varies for different purities.   When someone asks if a coin is magnetic the implied property is ferromagnetism not diamagnetism.

Here's a link to 3 videos and still from them comparing silver of .800 vs. .640 and .500 and .640 vs. .500.

https://en.numista.com/forum/topic128773.html#p1042674

Here's Aluminum vs. silver: