Erbium and REEs  
            from fly ash
Janet Kuypers 
1/4/22 Twitter-length Periodic Table poem 
for element #68, Erbium (Er) 
#janetkuyperstwitterverseperiodictablepoem 
on Facebook, Twitter, Instagram, and Tumblr
Don’t know how material-intensive 
renewable energy is? Try 1,000% more 
rare earth elements, like Erbium. 
How relieved are we to learn that REEs 
can be mined from waste in burning coal— 
fly ash— from a reusable liquid. 
So, let’s take toxic waste 
and make the world a better place. 
  |