[Vilkku]

Looks like that chart doesn't contain information from the 80's. I found this chart where the 1980 price level and crash seems to be pretty significant: https://www.researchgate.net/figure/Historical-rhenium-metal...

[thematrixturtle]

That's rhenium, not molybdenum?

[xmcqdpt2]

AFAIK all metals collapsed in 1980 due to Silver Thursday

https://en.m.wikipedia.org/wiki/Silver_Thursday

Different metals are correlated too. There are charts at the end of

https://www.hwwi.org/fileadmin/hwwi/Publikationen/Research/P...