start with a tungsten slug about 1/8-inch smaller in each dimension than the gold bar you want, then cast a 1/16-inch layer of real pure gold all around it. This bar would feel right in the hand, it would have a dead ring when knocked as gold should, it would test right chemically, it would weigh *exactly* the right amount, and though I don't know this for sure, I think it would also pass an x-ray fluorescence scan, the 1/16" layer of pure gold being enough to stop the x-rays from reaching any tungsten. You'd pretty much have to drill it to find out it's fake.
the amount of “salted tungsten” gold bars in question was allegedly between 5,600 and 5,700 – 400 oz – good delivery bars [roughly 60 metric tonnes].
This was apparently all highly orchestrated by an extremely well financed criminal operation.
Within mere hours of this scam being identified – Chinese officials had many of the perpetrators in custody.
And here’s what the Chinese allegedly uncovered:
Roughly 15 years ago – during the Clinton Administration [think Robert Rubin, Sir Alan Greenspan and Lawrence Summers] – between 1.3 and 1.5 million 400 oz tungsten blanks were allegedly manufactured by a very high-end, sophisticated refiner in the USA [more than 16 Thousand metric tonnes]. Subsequently, 640,000 of these tungsten blanks received their gold plating and WERE shipped to Ft. Knox and remain there to this day. I know folks who have copies of the original shipping docs with dates and exact weights of “tungsten” bars shipped to Ft. Knox.
