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Crimson Nylium JE1 BE1.pngWarped Nylium JE1 BE1.png

No‌[JE only]
Yes‌[BE only]


Yes (64)


Blast resistance










Catches fire from lava


Nylium is a variant of Netherrack that generates in the Nether. It has two variants: warped nylium and crimson nylium.


Natural generation[edit]

Warped nylium generates in the warped forest biome, and crimson nylium generates in the crimson forest biome.


Block Nylium
Hardness 1
Breaking time[note 1]
Default 5
Wooden 0.75
Stone 0.4
Iron 0.25
Diamond 0.2
Netherite 0.2
Golden 0.15
  1. Times are for unenchanted tools in seconds. For more information, see Breaking § Speed.

Block loot[edit]

Nylium can be mined only with a pickaxe. If mined without a pickaxe, it drops nothing. Nylium drops netherrack unless mined with Silk Touch.[1]

Namespaced IDSourceDrops
Incorrect toolCorrect tool
blocks/crimson_nyliumCrimson NyliumNothing (100%)1 (100%)
blocks/warped_nyliumWarped NyliumNothing (100%)1 (100%)

Chest loot[edit]

Item Structure Container Quantity Chance
Java Edition
Crimson Nylium Bastion remnant Hoglin stable chest 2–7 26.2%
Bedrock Edition
Crimson Nylium Bastion remnant Hoglin stable chest 2–7 26.2%


Using bone meal on netherrack that is placed next to or adjacent to warped or crimson nylium transforms the netherrack into nylium of that type. No block can be above the netherrack during this process. This transformation can also be done by activating a dispenser with bone meal directly into that netherrack block.


Similar to grass blocks and mycelium, nylium decays (immediately on a random tick) into netherrack when an opaque block is placed above it. However, unlike grass blocks and mycelium, it does not decay underneath water and lava.[2]

Similar to grass, the player can apply bone meal to nylium. This nylium, along with nearby nylium, generate vegetation that occurs in their native biome (crimson nylium generates crimson forest vegetation and warped nylium generates warped forest vegetation).

Fungi must be placed on the same type of nylium to be grown into huge fungi using bone meal.


Java Edition:

SoundSubtitleSourceDescriptionNamespaced IDTranslation keyVolumePitchAttenuation distance
Block brokenBlocksBreaking the blockblock.nylium.breaksubtitles.block.generic.break0.85? 16
None[sound 1]BlocksFalling on the block with fall damageblock.nylium.fallNone[sound 1]0.5? 16
Block breakingBlocksMining the blockblock.nylium.hitsubtitles.block.generic.hit0.25? 16
Block placedBlocksPlacing the blockblock.nylium.placesubtitles.block.generic.place0.85? 16
FootstepsBlocksWalking on the blockblock.nylium.stepsubtitles.block.generic.footsteps0.15? 16

Data values[edit]


Java Edition:

NameNamespaced IDTranslation key
Crimson Nyliumcrimson_nylium block.minecraft.crimson_nylium
Warped Nyliumwarped_nylium block.minecraft.warped_nylium

Bedrock Edition:

NameNamespaced IDNumeric ID Translation key
Crimson Nyliumcrimson_nylium 487tile.crimson_nylium.name
Warped Nyliumwarped_nylium 488tile.warped_nylium.name


This section needs more information.
Information requested: Needs minecon reveal segment, and how they used to use wood sounds
Java Edition
1.1620w06aCrimson Nylium JE1 BE1.png Warped Nylium JE1 BE1.png Added nylium.
20w07aWarped nylium now has a 1109 (~0.92%) chance of being offered by piglins when bartering, in a stack size of 1, making it renewable.
20w09aWarped nylium now has a 5226 (~2.21%) chance of being offered by piglins when bartering, in a stack size of 1–5.
20w10aWarped nylium can no longer be obtained by bartering with piglins, making it no longer renewable.
20w16aCrimson nylium now generates in chests within bastion remnants.
20w22aNylium now drops netherrack, unless broken with Silk Touch, in which case it drops itself.
Bedrock Edition
1.16.0beta Nylium JE1 BE1.png Warped Nylium JE1 BE1.png Added nylium.
Nylium can be bonemealed to grow roots and fungi.
beta nylium now generates in chests within bastion remnants.


Issues relating to "Nylium" are maintained on the bug tracker. Report issues there.


  • The name is a portmanteau of "Nether" and "Mycelium", the name of the part of a fungus analogous to roots.


  1. MCPE-66941 resolved as "Works As Intended".
  2. MC-173356 "Nylium doesn't decay under water, waterlogged blocks, or lava" resolved as "Works as Intended"