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Originally posted by ignorant_ape
reply to post by emberscott
the density is irrelevant , XFR will tell the difference between gold plated tungsten and cast gold , further such tests as ultrasonic and electrical conductivity tests are capable of detecting inclusions , voids and other anomolies in a casting
such testers are expensive - but when trading a commodity @ £1000+ / oz are a sound investment
like i said origionally - non destructive materials testing is the modern standard - and used in many industries - we no longer drill holes to conduct assay testing
as the simple act of drilling the hole devalues the sample
thats why i think the tail is the fantasy of an idiot who has no idea how the precious metals market actually works
This week, a 1,000-gram ‘fake’ gold bar was found in the United Kingdom. Upon realizing discrepancies in the weight of the bar of gold, further tests revealed that the bar had been drilled out and filled with tungsten.
Somewhat surprisingly, this isn’t the first time we are learning about gold counterfeiting. In October 2009, bankers in Hong Kong discovered gold bars from the US that were filled with Tungsten, with similar instances also occurring in Ethiopia and South Africa. In almost every documented situation Tungsten is commonly chosen as a substitute. It is a material substantially cheaper than gold but shares the exact same density, to the third decimal. This makes it the ideal material for counterfeiting.
Banks regularly deploy a system in which gold is cyclically sent off for cutting and refining, in an effort to prevent chipping in order to maintain a marketable standard of presentation. Tungsten plated gold would almost certainly become detected in this banking process. So without even taking into account the technical difficulties associated with counterfeiting gold itself, the nature of the market is one that disallows this type of negative activity. And if we ever do find ourselves in the growing midst of widespread gold counterfeiting, it only costs $3000 to purchase a meter that is able to detect tungsten.
Somewhat surprisingly, this isn’t the first time we are learning about gold counterfeiting. In October 2009, bankers in Hong Kong discovered gold bars from the US that were filled with Tungsten,
The Coin story concluded that "there has been almost a total blackout on news coverage of this story." Well, this charge can't be laid to gold investor news sources and letters as numerous attempts continue to be made with regularity to try to validate and legitimize the original story that cropped up last fall in the vein of an alleged 1.3 to 1.5 million 400-ounce bars produced in the US to flood/fool various nations in the world.
Originally posted by Phage
There is ample evidence that counterfeiting has and will continue to be done. As long as there is anything of any value (real or perceived), there will be fakes. The greater the value, the greater the incentive. Caveat emptor.
It just isn't necessary to throw rumor of into the mix.
it only costs $3000 to purchase a meter that is able to detect tungsten