[super7man]

W (tungsten ) atomic weight 183.84-—Au (gold)-—— 196.97

That's a 5% difference. Should easily be able to detect by specific gravity test.

[SeeSharp]

W (tungsten ) atomic weight 183.84-—Au (gold)-—— 196.97

That's a 5% difference. Should easily be able to detect by specific gravity test.

Not so, unfortunately. Atomic weight is not the same as density. Atomic weight is the weight of one mole , or 6.02 x 10**23 atoms, of a substance. Atomic weight says nothing about the volume occupied by one mole of a substance so you can't just weigh two bars of equal size and expect a 5% difference in weight if one is gold and the other tungsten.

[rellimpank]

—yep—considering that the concept is three thousand years or so old, you’d think some of these financial geniuses would know about it-—