the.com/bismuth
the heavy metal that grows rainbow staircases and quietly cures your indigestion
pretty crystalsForms iridescent rainbow staircase patterns when cooled
in your medicineIt's the bismuth in Pepto-Bismol
barely radioactiveOnce thought stable, decays over a billion universe lifetimes
defies physicsExpands as it freezes, like water does
least toxicSurprisingly safe heavy metal, unlike lead neighbors