10 Corona - 1910 Austria Gold Coin - Coin Community Forum

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Author	Replies: 5 / Views: 1,164
diagonal New Member Czech Republic 13 Posts	Posted 04/01/2020 12:12 pm Hello! I bough this coin https://en.numista.com/catalogue/pieces20870.html Weigh is ok, diameter is ok, thickness is 0,75-0,8mm ( I don´t know what is original) Looks good and also edge looks genuine. ,,Ring test,, is also ok I guess. Non magnetic. Till here I didn´t have any problem, but when I tried diamagnetic test, the neodym.magnet just slide down without any resistance. Its 2mm diameter small neodym.magnet. If I tried the same test with 1964 US silver ,,one dime,, there is nicely visible the resistance and slow motion of sliding. Also my 5 gram gold bar in plastic cover doing the same. What do you think? Possibility of counterfeit? Coin is not rare - almost price of pure gold in the coin and is bought in numismatic store. Can be no-reaction based on thicknes or on purity of gold? - 0.900 Is it normal with other types of small gold coins? Is here some other test fot it? Thank you and have a nice day! Report this Post to the Staff

Coinfrog Bedrock of the Community United States 94367 Posts	Posted 04/01/2020 2:36 pm Pics would help, please. to the CCF! Report this Post to the Staff
diagonal New Member Czech Republic 13 Posts	Posted 04/01/2020 3:34 pm Ok:)) sorry for quality but I cant do better now. Report this Post to the Staff
ryurazu Pillar of the Community Australia 1333 Posts	Posted 04/01/2020 9:16 pm the only other tests, that are non-destructive are XRF however only measure/detects the surface, some very expensive scales are good enough to give SI. Report this Post to the Staff
diagonal New Member Czech Republic 13 Posts	Posted 04/02/2020 1:45 pm did somebody thist test with any different coin ? Is the slow motion of neodymagnet necessary in case of .900 gold? Report this Post to the Staff
diagonal New Member Czech Republic 13 Posts	Posted 04/02/2020 5:25 pm scan of the coin Report this Post to the Staff
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