{{Infobox block
| image = Heavy Core.png
| renewable = No ([[Renewable resource#Vault|except via ominous vault]])
| stackable = Yes
| maxStack = 64
| tool = pickaxe
| light = No
| transparent = Yes
| flammable = No
| lavasusceptible = No
| waterloggable = Yes
| rarity = Epic
}}

A '''heavy core''' is a rare [[block]] that can be obtained from [[ominous vault]]s found in [[trial chambers]]. It can be combined with a [[breeze rod]] to craft a [[mace]].

== Obtaining ==
=== Generated loot ===
{{LootChestItem|heavy-core}}

=== Breaking ===
A heavy core can be mined with any tool or by hand, but a [[pickaxe]] is the most effective. It always drops itself when mined. 

{{breaking row|horizontal=1|Heavy Core|Pickaxe}}

== Usage ==
=== Crafting ingredient ===
{{crafting usage}}

=== Note blocks ===
Heavy cores can be placed under [[note block]]s to produce the "snare drum" sound.

=== Piston interaction ===
Just like [[glazed terracotta]], heavy cores can be pushed by [[piston]]s but can't be pulled by [[sticky piston]]s. They also don't stick to [[slime block|slime]] and [[honey block]]s.

== Sounds ==
{{Sound table/Block/Heavy core}}

== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|showforms=y
|generatetranslationkeys=y
|displayname=Heavy Core
|spritetype=block
|nameid=heavy_core
|foot=1}}

{{edition|bedrock}}:
{{ID table
|edition=bedrock
|shownumericids=y
|showforms=y
|generatetranslationkeys=y
|displayname=Heavy Core
|spritetype=block
|nameid=heavy_core
|id=-316
|foot=1}}

=== Block states ===
{{see also|Block states}}

{{/BS}}

== History ==
{{HistoryTable
|{{HistoryLine||March 12, 2024|link=https://twitter.com/Minecraft/status/1767564702333247862|Heavy cores are teased in a screenshot posted on social media.}}
|{{HistoryLine|java}}
|{{HistoryLine||1.20.5|exp=Update 1.21|dev=24w11a|[[File:Heavy Core JE1 BE1.png|32px]] Added heavy cores.}}
|{{HistoryLine|||dev=24w12a|Heavy cores can now be [[waterlogged]].
|Heavy cores stop [[lava]] flow instead of being destroyed by it.
|Pushing a heavy core with a [[piston]] now moves the block, instead of popping it off.
|Increased the blast resistance of the heavy core to match [[obsidian]].
|Mining a heavy core now takes 15 seconds, down from 45.
|Removed the unused <code>orientation</code> block state.
|[[Map]] color is now silver.}}
|{{HistoryLine|||dev=24w13a|Heavy cores now are obtained from ominous vaults.}}
|{{HistoryLine|||dev=24w14a|Heavy cores now has pickaxes as an appropriate tool.}}
|{{HistoryLine||1.21|dev=24w18a|Heavy cores are now available without using the "Update 1.21" experimental data pack.}}
|{{HistoryLine|||dev=pre2|Heavy core rarity has been changed from "Common" to "Epic".}} 

|{{HistoryLine|bedrock}}
|{{HistoryLine||1.20.80|exp=Update 1.21|dev=Preview 1.20.80.22|[[File:Heavy Core JE1 BE1.png|32px]] Added heavy cores.}}
|{{HistoryLine||1.21.0|exp=Update 1.21|dev=Preview 1.21.0.20|Pushing a heavy core with a [[piston]] now moves the block, instead of popping it off.|The [[Map item format#Base colors|base color]] of heavy cores on [[map]]s is now <code>METAL</code>.<!--The official changelog for this Preview is partially pasted from Java Edition's, do NOT rely on it for info.-->}}
|{{HistoryLine||1.21.0|dev=Preview 1.21.0.22|Heavy cores are now available without using the "Update 1.21" experimental toggle.}}
|{{HistoryLine||1.21.20|dev=Preview 1.21.10.22|Heavy core [[rarity]] has been changed from "Common" to "Epic".|[[File:Heavy Core (Inventory) BE2.png|32px]] Heavy cores in the [[inventory]] have been scaled to the size of a full block.|Heavy cores are now centered in [[item frame]]s.}}
|{{HistoryLine||1.21.50|dev=Preview 1.21.50.20|Heavy cores are faster to mine without a pickaxe.|A [[note block]] placed above a heavy core now plays the "snare drum" sound instead of the "harp" sound.}} 
|{{HistoryLine|||dev=Preview 1.21.50.24|[[File:Heavy Core JE1 BE1.png|32px]] Item texture of heavy cores has been changed.}} 
}}

== Issues ==
{{Issue list}}

== Trivia ==
* The block is described by Mojang as 'dense' and 'mysterious'.<ref>{{mcnet|minecraft-preview-1-20-80-22|Minecraft Preview 1.20.80.22|March 14, 2024|Matt Gartzke}}</ref>

== Gallery ==
<gallery>
1.21 More items teaser.jpg|The first screenshot of a heavy core (left) and [[breeze rod]] (top right) on the [[health#Player effects|game over]] screen. Notice the tilting caused by {{bug|MCPE-179365}}.
</gallery>

== References ==
{{reflist}}

== Navigation ==
{{Navbox blocks|utility}}

[[de:Schwerer Kern]]
[[es:Núcleo pesado]]
[[fr:Noyau lourd]]
[[ja:ヘビーコア]]
[[lzh:Heavy Core]]
[[pt:Núcleo pesado]]
[[ru:Навершие булавы]]
[[uk:Важке ядро]]
[[zh:沉重核心]]