Has anyone ever ran into any? I guess it would be hard to test, but it seems like the expansion of tungsten vs gold would differ at some point, causing the difference to be great enough to measure by figuring out its volume via water displacement.
A Chinese company called Chinatungsten is advertising imitation gold merchandise on its website. The following quote is taken directly from their Tungsten Alloy for Gold Substitution page:
"a coin with a tungsten center and gold all around it could not be detected as counterfeit by density measurement alone ... We are well accustomed to exploit more innovative applications of tungsten products. Gold-plated tungsten is one of our main products."
Got my ACE from Santa, I have not been able to put it down, what a great device went through 2 bags of pennies, took me a week before. I count a bag finished when zinc is rolled and ready to be dumped.
A Chinese company called Chinatungsten is advertising imitation gold merchandise on its website. The following quote is taken directly from their Tungsten Alloy for Gold Substitution page:
"a coin with a tungsten center and gold all around it could not be detected as counterfeit by density measurement alone ... We are well accustomed to exploit more innovative applications of tungsten products. Gold-plated tungsten is one of our main products."