Yes, they and many other industries use pumice.
Lots of uses for polishing stuff.
Freaky but cool video.
/super happy it’s not going on in my back yard, though :D
There’s a lot of that going on. Kilauea, La Palma.
Horrifying factoid: At least half of the residences affected by both volcanos were/are under or uninsured.
Sigh.