Tarnished by air and attacked by water,
Erbium metal would not be very useful as a quarter,
When absorbed in glass we see a pink tinge,
It’s used in fibre optics so we can log into Netflix and binge.
About the Author
I’m Joe and I’m a first year Chemist at the University of Sheffield. I play football and unfortunately, I’m an Arsenal fan. I’m also a recovering Netflix addict!