Blackstone

Blackstone is a dark-colored block that functions similar to cobblestone or cobbled deepslate. It can be found only in the Nether.

Natural generation
Blackstone generates naturally in the basalt deltas biome found in the Nether, anywhere underground, and below the surface of a lava sea.

Blackstone can be found as a part of bastion remnants.

Ore blobs of blackstone attempt to replace netherrack 2 times per chunk in blobs of size 0 to 160, from levels 5 to 31/36, in all Nether biomes except basalt deltas.

$$, blackstones also generate in big blobs, which attempt to replace netherrack 25 times per chunk in blobs of radius 3—7, from levels 0 to 127, in basalt deltas biome.

Bartering
Piglins may barter 8-16 blocks of blackstone when given a gold ingot.

Usage
Blackstone can be used as a substitute for cobblestone in the Nether as it can be used to craft stone tools, brewing stands, and furnaces. It can also be used to repair stone tools using an anvil. It can also be used to craft polished blackstone.

Blackstone cannot be used to craft dispensers, droppers, pistons, or other blocks that use cobblestone in their recipes. This is intended per.

Note Blocks
Blackstone can be placed under note blocks to produce "bass drum" sounds.

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