Day 473:
I can confirm that if one puts a potato down at one end of a line of sparky red rock dust and then hits the other end with a pickaxe, the potato will be scorched.
It’s worth noting I did not run this experiment on purpose, but rather had mined a whole lot of the red rock and didn’t pay attention to my dust volumes.
The fact that the stuff hasn’t made the air explode yet is quite remarkable, on retrospect.
Well, and the fact that my lungs haven’t sparked to death.