GOLD bars are very suspect to me especially the 1OZ models but you can fake anything so how did the guy find out it was a fake ?
Run those through the Coinstar just to be sure. If they don't make it to the reject slot, you know something is up.
Yep, I'm thinking a gold layer that thick would entirely shield the tungsten core from a commercial XRF gun. Wonder what a Sigma scanner would make of it? I think they claim to be able to detect a tungsten core through up to 1.5mm of gold. Any chance we could get the poster to put a micrometer on that outer layer and tell us how thick it is?
No new information yet It was on collectors.com under precious metals titled Gotta watch them gold bars Didn't know if I could put a link to another coin forum without catching a BAN here goes nothing https://forums.collectors.com/discussion/1097113/gotta-watch-them-gold-bars#latest
An update on that gold bar... It surfaced in California and it tested just out side of the brackets on a sigma. The guy is new at the shop and he thought it was ok. He sold it to the local wholesaler and the wholesaler sold it to a smaller shop and that shop tested it and it would not test so he returned it to the wholesaler. Then the wholesaler tested it with their $16,000 gun. It read .98 fine So They tore into it and this is what they found.
I'd love to know what the .02 showed as. If you see even a fractional percentage of tungsten coming out in the analysis, that should be a "get the drill" signal. (I don't think you'd ever see tungsten as a significant component of an actual gold melt...)