Infested Block

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Infested Block
Cobblestone JE6 BE3.pngStone JE4 BE2.pngStone Bricks JE3 BE2.pngCracked Stone Bricks JE3 BE2.pngMossy Stone Bricks JE3 BE2.pngChiseled Stone Bricks JE3 BE2.png



Yes (64)


Blast resistance










Catches fire from lava


Duncan Geere Mojang avatar.png

If for some reason you need a lot of stone, then you could create a deep quarry, or build a stone generator by flowing lava into water from above. But in either case, keep an eye out for silverfish – they’re able to infiltrate stone blocks, turning them into monster eggs which spawn their own silverfish when broken that immediately attack the player.

Duncan Geere[1]

Infested blocks or fool's blocks (Advanced Mining) are blocks disguised as stone, cobblestone, or any stone bricks variants, but spawn silverfish when broken in Survival or Adventure 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,[2] with the latter within igloo basements.

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

Mineral veins[edit]

Infested stone can generate in the Overworld in the form of mineral veins. Infested stone attempts to generate 7 times per chunk in veins of size 9, from altitudes 0 to 64, within one of the following biomes, or within a chunk that is at least partially occupied by one of these biomes:


Are generated when a silverfish enters the respective normal block form. In Bedrock Edition, letting a silverfish enter regular stone bricks turns them into infested stone instead of the infested stone bricks.


Infested blocks are not obtainable by Silk Touch, and is only available through the creative inventory or commands.



When the block is broken, whether by a player or by an explosion, a silverfish spawns where it was broken. In Java Edition, infested blocks break instantly. In Bedrock Edition, infested blocks take longer to break than their normal counterparts, and take the same time regardless of the tool:

Block Infested Block
Hardness 0.75
Breaking time
Default 1.15

When mined, an infested block spawns a silverfish that immediately attacks 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 break, spawning more aggressive silverfish. If the silverfish is killed in one hit, then nearby infested blocks do not break, and no silverfish spawn from them.

Block loot[edit]

Namespaced IDSourceDrops
DefaultSilk Touch
blocks/infested_stoneInfested StoneNothing (100%)1 (100%)
blocks/infested_cobblestoneInfested CobblestoneNothing (100%)1 (100%)
blocks/infested_stone_bricksInfested Stone BricksNothing (100%)1 (100%)
blocks/infested_cracked_stone_bricksInfested Cracked Stone BricksNothing (100%)1 (100%)
blocks/infested_mossy_stone_bricksInfested Mossy Stone BricksNothing (100%)1 (100%)
blocks/infested_chiseled_stone_bricksInfested Chiseled Stone BricksNothing (100%)1 (100%)

NOTE: The drops shown in the Silk Touch column are the non-infested counterparts and not the infested original blocks.


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

In Bedrock Edition, a player can distinguish infested from normal blocks by observing that an infested block takes longer to break when using a pickaxe than the stone it appears to be, but without a pickaxe, it breaks faster.

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

In Java Edition, using the debug screen, a player can identify whether or not a block is infested.


Java Edition:

SoundSubtitleSourceDescriptionNamespaced IDTranslation keyVolumePitchAttenuation distance
Block brokenBlocksBreaking the blockblock.stone.breaksubtitles.block.generic.break1.00.816
None[sound 1]BlocksFalling on the block with fall damageblock.stone.fallNone[sound 1]0.50.7516
Block breakingBlocksMining the blockblock.stone.hitsubtitles.block.generic.hit0.250.516
Block placedBlocksPlacing the blockblock.stone.placesubtitles.block.generic.place1.00.816
FootstepsBlocksWalking on the blockblock.stone.stepsubtitles.block.generic.footsteps0.151.016

Bedrock Edition: [needs in-game testing]

SoundDescriptionNamespaced IDVolumePitch
Breaking the blockdig.stone? 0.8
Falling on the block with fall damagefall.stone? ?
Mining the blockhit.stone? 0.5
?Jumping from the blockjump.stone? ?
?Falling on the block without fall damageland.stone? ?
Walking on the blockstep.stone? ?
Placing the blockuse.stone? 0.8

Data values[edit]


Java Edition:

NameNamespaced IDTranslation key
Infested Stoneinfested_stone block.minecraft.infested_stone
Infested Cobblestoneinfested_cobblestone block.minecraft.infested_cobblestone
Infested Stone Bricksinfested_stone_bricks block.minecraft.infested_stone_bricks
Infested Cracked Stone Bricksinfested_cracked_stone_bricks block.minecraft.infested_cracked_stone_bricks
Infested Mossy Stone Bricksinfested_mossy_stone_bricks block.minecraft.infested_mossy_stone_bricks
Infested Chiseled Stone Bricksinfested_chiseled_stone_bricks block.minecraft.infested_chiseled_stone_bricks

Bedrock Edition:

NameNamespaced IDNumeric ID Translation key
Infested Blockmonster_egg

Block states[edit]

Bedrock Edition:

Name Default value Allowed values Description
monster_egg_stone_typestone chiseled_stone_brick Infested Chiseled Stone Brick
cobblestone Infested Cobblestone
cracked_stone_brick Infested Cracked Stone Brick
stone Infested Stone
mossy_stone_brick Infested Mossy Stone Brick
stone_brick Infested Stone Brick

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 now rarely generate in extreme hills biomes.
1.6.113w17aSilverfish do 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 from <block> Monster Egg to Infested <block>.
Infested blocks now break instantly, regardless of the tool, instead of taking longer to break than their non-infested counterparts. This makes them harder to identify.
Prior to The Flattening, this block's numeral ID was 97.
1.1418w43aStone JE3.pngCobblestone JE5.pngStone Bricks JE2.pngMossy Stone Bricks JE2.pngCracked Stone Bricks JE2.pngChiseled Stone Bricks JE2.png Infested block's texture has been changed.
18w44aStone JE4 BE2.png Infested stone's texture has been changed, once again.
18w47aStone Bricks JE3 BE2.pngMossy Stone Bricks JE3 BE2.pngCracked Stone Bricks JE3 BE2.pngChiseled Stone Bricks JE3 BE2.png Smoothed the textures of all infested stone bricks.
18w50aCobblestone JE6 BE3.png Infested cobblestone's texture has been changed, once again.
?Silverfish are no longer spawned when the block is destroyed in an explosion.
1.1620w07aSilverfish are now spawned from blown up infested blocks 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 11.0.1Added silverfish blocks.
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.


  1. "Block of the Week: Stone" by Duncan Geere., May 4, 2018
  2. MC-140209