{{distinguish|Mycelium}}
{{redirect|Nether Grass Block|the main ground block in the overworld|Grass Block|other uses|Grass (disambiguation)}}
{{Infobox block
| image1 = Crimson Nylium.png
| image1caption = Crimson Nylium
| image2 = Warped Nylium.png
| image2caption = Warped Nylium
| invimage = Crimson Nylium
| invimage2 = Warped Nylium

| transparent = No
| light = No
| tool = wooden pickaxe
| renewable = {{JEBE|No|Yes}}
| stackable = Yes (64)
| flammable = No
| lavasusceptible = No
}}
'''Nylium''' is a variant of [[netherrack]] that generates in [[the Nether]]. It has two variants: '''warped nylium''' and '''crimson nylium''', each spawning in different biomes.

== Obtaining ==
=== Breaking ===
Nylium drops itself only when mined with a [[pickaxe]] enchanted with [[Silk Touch]]; if mined with a normal pickaxe, it drops [[netherrack]]. If mined without a pickaxe, it drops nothing.

{{breaking row|horizontal=1|Nylium|Pickaxe|Wooden}}

=== Natural generation ===
Warped nylium generates in the [[warped forest]] biome, and crimson nylium generates in the [[crimson forest]] biome.

{{Block distribution}}

=== Mob loot ===
Nylium is dropped when an [[enderman]] dies while holding it.

=== Chest loot ===
{{LootChestItem|crimson-nylium}}

=== Post-generation ===
{{ctrl|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. [[Air]] must 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.  If both types of nylium are present, there is an equal chance of either being spread.

=== Renewability ===
{{exclusive|Bedrock|section=1}}
As [[netherrack]] generates in [[nether portal]]s spawn floating, using bone meal on netherrack turns them into nylium, making them renewable.

== Usage ==
Similar to [[grass block]]s and [[mycelium]], nylium decays (based on [[random tick]]s) into netherrack when an [[opaque]] block is placed above it. However, unlike grass blocks and mycelium, it does not decay underneath [[water]] or [[lava]].<ref>{{bug|MC-173356|||WAI}}</ref> It decays when covered with [[snow]].<ref>{{bug|MC-174639|||WAI}}</ref>

Like mycelium and [[podzol]], [[mushroom]]s can remain on nylium blocks in any [[light]] level. [[Huge mushroom]]s can be grown by using bone meal on mushrooms planted on nylium.

[[Fungi]] can likewise be grown into [[huge fungi]] using [[bone meal]], although the fungus must be placed on the same type of nylium, or the bone meal is never consumed.

Similar to [[grass block]]s, the player can apply [[bone meal]] to nylium. This nylium, along with nearby nylium, generates vegetation that occurs in its native biome (crimson nylium generates mostly [[crimson forest]] vegetation and warped nylium generates mostly [[warped forest]] vegetation), and just like in the native biomes, the opposite type of fungi occassionally generates. The vegetation is generated in a 5×5 area, centered on the nylium block on which bone meal is used. 

=== Note Blocks ===
Nylium can be placed under [[note block]]s to produce "bass drum" sounds.

== Sounds ==
{{Sound table/Block/Nylium}}

== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|generatetranslationkeys=y
|displayname=Crimson Nylium
|spritetype=block
|nameid=crimson_nylium
|blocktags=enderman_holdable, mushroom_grow_block, nylium, mineable/pickaxe
|showblocktags=y}}
{{ID table
|displayname=Warped Nylium
|spritetype=block
|nameid=warped_nylium
|blocktags=enderman_holdable, mushroom_grow_block, nylium, mineable/pickaxe
|foot=1}}

{{edition|bedrock}}:
{{ID table
|edition=bedrock
|shownumericids=y
|showforms=y
|generatetranslationkeys=y
|displayname=Crimson Nylium
|spritetype=block
|nameid=crimson_nylium
|id=487}}
{{ID table
|displayname=Warped Nylium
|spritetype=block
|nameid=warped_nylium
|id=488
|foot=1}}

== History ==
{{HistoryTable
|{{HistoryLine|java}}
|{{HistoryLine||September 28, 2019|link={{ytl|OZqNaEX8208&t|t=2h14m52s}}|[[File:Crimson Nylium JE1 BE1.png|32px]] [[File:Warped Nylium JE1 BE1.png|32px]] Crimson and Warped nylium is announced at [[MINECON Live 2019]].
|Then they use a [[planks]] sound.}}
|{{HistoryLine||1.16|dev=20w06a|[[File:Crimson Nylium JE1 BE1.png|32px]] [[File:Warped Nylium JE1 BE1.png|32px]] Added nylium.}}
|{{HistoryLine|||dev=20w07a|Warped nylium now has a {{frac|1|109}} (~0.92%) chance of being offered by [[piglin]]s when [[bartering]], in a stack size of 1, making it [[renewable resource|renewable]].}}
|{{HistoryLine|||dev=20w09a|Warped nylium now has a {{frac|5|226}} (~2.21%) chance of being offered by piglins when bartering, in a stack size of 1–5.}}
|{{HistoryLine|||dev=20w10a|Warped nylium can no longer be obtained by bartering with piglins, making it no longer renewable.}}
|{{HistoryLine|||dev=20w12a|Nylium can now be fertilized with [[bone meal]] to grow [[crimson roots]], [[warped roots]], [[fungus|fungi]] and [[nether sprouts]].}}
|{{HistoryLine|||dev=20w16a|Crimson nylium now generates in [[chest]]s within [[bastion remnant]]s.}}
|{{HistoryLine|||dev=20w22a|Nylium now drops [[netherrack]], unless [[breaking|broken]] with [[Silk Touch]], in which case it [[drops]] itself.}}
|{{HistoryLine||1.16.2|dev=20w27a|[[Mushroom]]s can now be placed and grown on nylium at any light level.}}
|{{HistoryLine|bedrock}}
|{{HistoryLine||1.16.0|dev=beta 1.16.0.51|[[File:Crimson Nylium JE1 BE1.png|32px]] [[File:Warped Nylium JE1 BE1.png|32px]] Added nylium.
|Nylium can be fertilized with [[bone meal]] to grow [[crimson roots]], [[warped roots]], and [[fungus|fungi]].}}
|{{HistoryLine|||dev=beta 1.16.0.57|Crimson nylium now generates in [[chest]]s within [[bastion remnant]]s.}}
}}

== Issues ==
{{Issue list}}

== Trivia ==
* The name is a portmanteau of "[[The Nether|Nether]]" and "[[Mycelium]]", the name of the part of a fungus analogous to roots.

== References ==
{{reflist}}

== External links ==
* [https://www.minecraft.net/en-us/article/block-month--nylium Block of the Month: Nylium] – Minecraft.net on December 29, 2022

== Navigation ==
{{Navbox crimson}}
{{Navbox warped}}
{{Navbox blocks|natural}}

[[Category:Natural blocks]]
[[Category:Nether blocks]]
[[Category:Fungi]]

[[de:Nezel]]
[[es:Necelio]]
[[fr:Nylium]]
[[it:Necelio]]
[[ja:ナイリウム]]
[[ko:네사체]]
[[pl:Nylium]]
[[pt:Nicélio]]
[[ru:Нилий]]
[[uk:Нілій]]
[[zh:菌岩]]