Where to find Obsidian.
All in all, it takes quite a bit of work to get there.
This specificLego Fortnite, as mentioned above, will take a fair amount of work to find.
Once you get to this biome you should collect three Sand Shells.
When you’re safely inside a Lava Cave, look around for dark purple/blue formations growing on the walls.
They can be at ground level or much higher.
These formations are what you’re looking for, hit them with your Rare Pickaxe to harvest Obsidian.
This recipe will automatically be added to your Stone Breaker list once you’ve collected Obsidian once.
The cost is one Obsidian will make one Obsidian Slab.
Once you place a material into the machine it will automatically begin to make Slabs.
That’s it for now!
