Ancient reserves of netherite preserved in perilous depths!
The pack.png. Shown is a buried reserve "structure."
An Ancient Reserve buried in the ground. Screenshot taken in Atmospheric nether.
From afar it may appear to be normal blackstone, but if you're lucky, it's actually the jackpot! Screenshot taken in Atmospheric Nether.
Screenshot taken in Atmospheric Nether
Very rarely, you may find one that happens to "pop" out of the lava ocean!