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Author: Subject: 18K Gold sould I drop it in aqua regia.
Sulaiman
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[*] posted on 9-7-2020 at 18:11


I would take the items to a jeweler and try to sell them,
you get a free assay then decide.
Gold is increasing in dollar value so good to sell or keep.
If fake then as a chemist, see how much pure gold you can recover.
This would entail a double loss (fake + chemicals)
BUT, with some gold dust as a souvenir ;)




CAUTION : Hobby Chemist, not Professional or even Amateur
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Syn the Sizer
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[*] posted on 9-7-2020 at 18:17


So, I took them in and you guys were sort of right. It is gold but it isn't 18K gold. I asked if he was wanting to buy he asked what I was looking. I named what I paid and he thought about it than bought it off me. As long as I got what I paid back, that's all I cared. Maybe the jeweller took me too who knows, I just got my money back, that's all I care.
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[*] posted on 9-7-2020 at 19:09


Quote: Originally posted by Syn the Sizer  
So, I took them in and you guys were sort of right. It is gold but it isn't 18K gold.


What was it?
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Syn the Sizer
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[*] posted on 9-7-2020 at 19:14


It was gold, he didn't say what K, just wasn't 18K. I didn't care, everybody scared me and I just wanted to get my money back lol. If it was 18K and he got a score, at least I got my money back.
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draculic acid69
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[*] posted on 9-7-2020 at 22:16


Did they do an xrf test?
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Syn the Sizer
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[*] posted on 9-7-2020 at 22:34


they did first did what I think was a hardness test, then took it into the back for a while. However, after thinking the worst all night I just wanted to get my money back. I didn't care to see any test results lol.
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draculic acid69
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[*] posted on 9-7-2020 at 22:42


They won't do a hardness test with an xrf. It'll be the xrf and that's it or they'll do hardness or scratch tests.thats what they were doing out the back.generally they don't like scratching and grinding jewelry in front of ppl.it tends to get an angry unfavorable response from whoever is selling it

[Edited on 10-7-2020 by draculic acid69]
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Syn the Sizer
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[*] posted on 9-7-2020 at 22:58


That makes sense, I got my cash back, that's what matters to me.
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Herr Haber
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[*] posted on 10-7-2020 at 02:12


Quote: Originally posted by draculic acid69  
That used to be an effective way to determine if it's fake but now instead of iron they use tungsten or titanium.just a few days ago a news story from china about how billions in fake gold bars were used as collateral for loans went worldwide.it was all just coated tungsten or copper.https://www.afr.com/markets/commodities/the-mystery-of-4b-of-loans-backed-by-fake-gold-20200705-p55938


Tungsten I get it, it has almost the same density. I've never heard of titanium though.




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Whathappensif
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[*] posted on 10-7-2020 at 04:27


Really, an Arab guy in Dubai (who is probably Muslim) selling a cross he owned? FYI most Christians in Dubai are of Asian, African and European origin.

Smells fishier than a caviar factory.
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mackolol
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[*] posted on 10-7-2020 at 05:16


Quote: Originally posted by Whathappensif  
Really, an Arab guy in Dubai (who is probably Muslim) selling a cross he owned? FYI most Christians in Dubai are of Asian, African and European origin.

Smells fishier than a caviar factory.

I didn't notice that he mentioned the guy being muslim...
And even being an Arab he could be an atheist
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woelen
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[*] posted on 10-7-2020 at 05:24


I find this a very fishy story anyway. Someone stopping in the streets, in front of a total stranger, trying to sell some jewellery for a price which sounds too good to be true . . .



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draculic acid69
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[*] posted on 10-7-2020 at 06:11


Quote: Originally posted by Herr Haber  
Quote: Originally posted by draculic acid69  
That used to be an effective way to determine if it's fake but now instead of iron they use tungsten or titanium.just a few days ago a news story from china about how billions in fake gold bars were used as collateral for loans went worldwide.it was all just coated tungsten or copper.https://www.afr.com/markets/commodities/the-mystery-of-4b-of-loans-backed-by-fake-gold-20200705-p55938


Tungsten I get it, it has almost the same density. I've never heard of titanium though.


I just get the two of those mixed up bcoz they both start with t.
Im pretty sure it's tungsten they use
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Syn the Sizer
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[*] posted on 10-7-2020 at 07:02


Quote: Originally posted by woelen  
I find this a very fishy story anyway. Someone stopping in the streets, in front of a total stranger, trying to sell some jewellery for a price which sounds too good to be true . . .


It was too good to be true. I only got back what I paid, I do feel stupid about it.

I do have a question now. What do they alloy with gold to reduce the K? I am wondering what else would have been in jewellery. He bought it for what I paid so he did see some value in it.

Would it be to melt it down for the gold or a resale as is?
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draculic acid69
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[*] posted on 10-7-2020 at 07:25


I reckon it was just plated or filled gold. If plated there wouldn't be much but if it's rolled gold it can be 5-10% gold content. usually its 10-14karat gold in these items
but anything that's stamped 18k and isn't 18k is a sign of scammish product.
Silver, copper,zinc,lead,nickel and iron are what they'll use to alloy gold. Nickel isn't really common due to allergic reactions on skin and only time I've seen iron was in a 300gram 23.7k chain bcoz it would just be too soft having a 24k chain.
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[*] posted on 10-7-2020 at 07:44


Ok, so he is probably looking to reclaim any gold in the jewellery since he wouldn't want to sell a falsely stamped item. If rolled gold, at best he would have ~7.8g of gold at around $77/g CDN. But he has more value in gold as a resource for making jewellery so 7.8g of gold to him is worth more to him than $77/g.
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[*] posted on 11-8-2020 at 05:53


Quote: Originally posted by DraconicAcid  

It says "INRI", which stands for Jesus of Nazareth, King of the Jews. It's common on Catholic crosses.


INRI ? Igne Natura Renovatur Integra :)
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