Netherrack

"Netherrack was added to the Java edition of Minecraft in Alpha version 1.2.0, the Halloween Update, alongside pumpkins, clocks, fishing and the Nether. Spoiler alert: the Nether is where netherrack gets its name from (though it was originally called "bloodstone", eww), and it's also where you'll find more netherrack than any one person could ever need."

- Duncan Geere

Netherrack is a rock-like block found in the Nether.

Obtaining
Netherrack can be mined only with a pickaxe.

Natural generation
Netherrack makes up most of the Nether's terrain, and also generates as part of ruined portals.

Nylium
Crimson or warped nylium transforms into netherrack if a solid, opaque block is directly above it. Netherrack can also be obtained by mining nylium without Silk Touch.

Nether portals
$$, netherrack generates as part of nether portals spawned floating.

Usage
When netherrack's top is lit on fire, the fire burns indefinitely.

bone meal on netherrack placed next to warped nylium or crimson nylium transforms the netherrack into more nylium.

Analyzing the netherrack in a material reducer, it turns out to be a volcanic silicate rock rich in mercury.

Sounds




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Video
''Note: This video is outdated. It states that netherrack is unique in that fire can burn indefinitely on it. Since 1.12, magma blocks can also maintain fires eternally. Soul sand and soul soil also can have soul fire burning indefinitely.''