Where to find troilite in Subnautica 2

Troilite is an essential Subnautica 2 resource needed to craft mangalloy ingots and build a metal farm. Without troilite, you won’t be able to produce new ores, which would be problematic since ore nodes don’t respawn. Troilite doesn’t spawn in the most inviting place, but once you know where to look (and get past the creepy fish), you can start building your own metal farm.