/biz/ - Business & Finance

There are less than ten metals considered be precious metals, including iridium, rhenium, ruthenium, rhodium, palladium, osmium, platinum, silver and gold. But among these, only four are considered to be investment precious metals: gold, silver, platinum, and palladium.

Rhenium is the rarest precious metal, yet is is only around $30 an ounce.

It just so happens be one of the main materials for the fourth industrial revolution https://3dprintingindustry.com/news/darpa-funded-elementum-aims-to-3d-print-rhenium-metal-for-the-first-time-209311/

More on Rhenium:
https://www.youtube.com/watch?v=VRccwkEmOYg
https://www.youtube.com/watch?v=qpN62iYPnIk