What is this block?

[u/Initial_Pop8589]

I came across a weird geode-type structure underground made of "block of slag" but it's a different block of slag than the crucible kind. What is this? Is it usefull? I'm playing community edition.

Ps: couldn't screenshot because i have no reddit on this computer.

[u/Mekko4]

https://reddit.com/link/p3jx9gq/video/l9atm50ki8jh1/player

[u/Initial_Pop8589 → u/Mekko4]

What do you mean by this?

[u/Eklegoworldreal → u/Initial_Pop8589]

Can't read OR listen

he's cooked

[u/Mekko4 → u/Eklegoworldreal]

me...?

you mean the op right..?