Infested Block

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Infested Block
Cobblestone Revision 6.pngStone Revision 4.pngStone Bricks.pngCracked Stone Bricks.pngMossy Stone Bricks.pngChiseled Stone Bricks.png




Blast resistance



Any tool




Yes (64)



Catches fire from lava



Nothing, but spawns 1 Silverfish

Data value

dec: 97 hex: 61 bin: 1100001

Namespaced ID

See § Data values

Infested blocks are blocks disguised as stone, cobblestone, or any stone bricks variants, but spawn silverfish when broken. They do not spawn silverfish in creative mode.

Natural generation[edit]

Infested stone bricks are occasionally found in strongholds and igloo basements in place of normal stone bricks. Infested mossy and chiseled stone bricks also spawn in igloos. Infested mossy and cracked stone bricks do not generate naturally within strongholds[1], with the latter within igloo basements.

Infested stone is most commonly found in mountains biomes, generating below sea level‌[Java Edition only] or at layer 1-32‌[Bedrock Edition only] in veins up to 7 infested stone similar to ores. Infested stone are 7 times more common than diamond ore. This type of generation can also override other already generated infested blocks. In Bedrock Edition, letting a silverfish enter any stone brick variants or cobblestone has a high chance to turn these blocks into infested stone instead of the corresponding infested block. Because of this, infested stone can also be found outside mountain biomes in this edition.

Infested cobblestone is found in the rarely generated "fake secret end portal" room of woodland mansions.



When the block is broken, whether by a player or by an explosion, a silverfish spawns where it was broken. Infested blocks either break instantly‌[Java Edition only] or take longer to break than their normal stone counterparts‌[Bedrock and Legacy Console editions only], and take the same time regardless of the tool:

Block Infested Block
Hardness 0.75
Breaking time
Hand 1.15


When mined, infested blocks will spawn a silverfish which will instantly attack the player. If the player attacks a silverfish directly with a sword, bow or potion of Harming, or when a silverfish takes poison damage, nearby infested blocks will break, spawning other aggressive silverfish. If the silverfish is killed in one hit then nearby infested blocks will not break, and no silverfish will spawn from them.


Note blocks placed on infested blocks will produce piano sounds, while those placed on non-infested stone, cobblestone, or stone bricks will produce bass drum sounds.

Monster eggs take longer to break than the stones they appear as, which can be used to tell them apart.‌[Bedrock and Legacy Console editions only]

Mining an infested block with Silk Touch drops its non-infested counterpart, and does not spawn the silverfish.

A silverfish will not spawn if the block is destroyed by the ender dragon.

When an infested block is destroyed by a player in Creative mode, a silverfish is not spawned.

Data values[edit]


Java Edition:

Block Namespaced ID
Infested Stone infested_stone
Infested Cobblestone infested_cobblestone
Infested Stone Bricks infested_stone_bricks
Infested Cracked Stone Bricks infested_cracked_stone_bricks
Infested Mossy Stone Bricks infested_mossy_stone_bricks
Infested Chiseled Stone Bricks infested_chiseled_stone_bricks

Bedrock Edition:

Block Namespaced ID Numeric ID
Monster Egg monster_egg 97

Block data[edit]

In Bedrock Edition, monster eggs use the following data values:

DV Description
0 Infested Stone
1 Infested Cobblestone
2 Infested Stone Bricks
3 Infested Mossy Stone Bricks
4 Infested Cracked Stone Bricks
5 Infested Chiseled Stone Bricks


Java Edition Beta
1.8Pre-releaseAdded Block 97.
Java Edition
1.3.112w17aBlock 97 is now labeled as stone monster egg, cobblestone monster egg, or stone brick monster egg depending on what kind of block it is.
12w21bMonster eggs are now available in the Creative mode inventory.
1.4.212w38aStone monster eggs will now rarely generate in extreme hills biomes.
1.6.113w17aSilverfish will not cause monster eggs to break when /gamerule mobGriefing is set to false.
1.7.213w36aAdded mossy stone brick monster egg, cracked stone brick monster egg and chiseled stone brick monster egg variants.
?Silverfish are now spawned when a monster egg is destroyed by an explosion.
1.8?Silverfish are no longer spawned when mining a monster egg with a Silk Touch tool.
Silverfish are no longer spawned when destroying a monster egg in creative mode.
1.915w43aMonster eggs now generate among the stone bricks of igloo basements, with either regular, mossy or chiseled stone brick appearance.
1.1116w39aCobblestone monster eggs now generate in woodland mansions.
1.1317w47aThe different block states for the monster_egg ID have been split up into their own IDs.
Renamed to infested <block>.
Infested blocks now break instantly, regardless of the tool.
Prior to The Flattening, this block's numeral ID was 97.
1.1418w43aStone Revision 3.pngCobblestone Revision 5.pngStone Bricks Revision 2.pngMossy Stone Bricks Revision 2.pngCracked Stone Bricks Revision 2.pngChiseled Stone Bricks Revision 2.png Infested block’s texture has now been changed.
18w44aStone Revision 4.png Infested stone’s texture has now been changed, once again.
18w47aStone Bricks Revision 3.pngMossy Stone Bricks Revision 3.pngCracked Stone Bricks Revision 3.pngChiseled Stone Bricks Revision 3.png Smoothed the textures of all infested stone bricks.
18w50aCobblestone Revision 6.png Infested cobblestone’s texture has now been changed, once again.
Pocket Edition Alpha
0.9.0?Added monster eggs; the only way to create them in-game is with the help of silverfish.
0.11.0build 1Monster eggs now generate in extreme hills biomes.
0.16.0build 1Monster eggs are now available in the Creative inventory.
Pocket Edition
1.0.0alpha eggs now generate among the stone bricks of igloo basements, with either regular, cracked, mossy or chiseled stone brick appearance.
1.1.0alpha monster eggs now generate in woodland mansions.
Bedrock Edition
1.10.0beta eggs have been renamed to infested blocks.
Legacy Console Edition
???Patch 1Added monster eggs.
New Nintendo 3DS Edition
0.1.0Added monster eggs.


Issues relating to "Infested Block" or "Monster Egg" are maintained on the bug tracker. Report issues there.


  • Despite silverfish being able to infest cobblestone, stone bricks and mossy stone bricks, they cannot infest mossy cobblestone.