As a child, I used to live alongside a heritage steam railway in the south of England. Much of the engineering/restoration works was accessible, along with huge sections of the way. I’d quite often find lumps of Welsh Steam Coal that had fallen off the engines. It has a very peculiar and distinctive (yet strangely pleasant) smell in its unburnt form.

Milky Way - Red Car/Blue Car! Link for the under 35’s!

Try tethering your phone over USB. It’s how I used to install Gentoo in the past before the system was fully installed and WPA-Suoplicant was available.