DoChenRollingBearing
Yellow Jacket
...
Rhenium, Osmium, Iridium and Platinum are the only metals with a density over 21 (g/cc), gold and tungsten are both very close to 19.3. So, you do not need anything other than a good scale and calipers to see if any of the four could be fakes...
But, other than Pt, are any of these worth investing in? Hmm...:
"Collecting the Heaviest Metals: Re, Os, Ir and Pt"
http://goo.gl/o5vR1Z
Special thanks to ZH-er (weeks ago! I swear!) "Silver Rhino" who broached the idea of buying impossible to successfully counterfeit these metals.
Rhenium, Osmium, Iridium and Platinum are the only metals with a density over 21 (g/cc), gold and tungsten are both very close to 19.3. So, you do not need anything other than a good scale and calipers to see if any of the four could be fakes...
But, other than Pt, are any of these worth investing in? Hmm...:
"Collecting the Heaviest Metals: Re, Os, Ir and Pt"
http://goo.gl/o5vR1Z
Special thanks to ZH-er (weeks ago! I swear!) "Silver Rhino" who broached the idea of buying impossible to successfully counterfeit these metals.