Infested Block

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Infested Block
Cobblestone.pngStone.pngStone Bricks.pngCracked Stone Bricks.pngMossy Stone Bricks.pngChiseled Stone Bricks.png




Blast resistance



Any tool




Yes (64)




Nothing, but spawns 1 Silverfish

Data value

dec: 97 hex: 61 bin: 1100001


See Data values

Infested blocks[Java Edition only], also known as monster eggs[Bedrock Edition only] or silverfish blocks[Legacy Console Edition only], is a block that masquerades as a typical stone-type block, but which spawns silverfish when broken.



Infested blocks take the same amount of time to break as the block they're disguised as‌[Bedrock and Legacy Console editions only] or instantly‌[Java Edition only] with any tool. When the block is broken, whether by a player or by an explosion, a silverfish spawns where it was broken. Infested blocks will typically take longer to break than their normal stone counterparts, which can be used to identify them.‌[Bedrock and Legacy Console editions only] Also, note blocks placed on infested blocks will produce piano sounds, while those placed on stone or stone bricks will produce bass drum sounds.

Block Monster Egg
Hardness 0.75
Breaking time
Hand 1.15

Mining an infested block with Silk Touch drops the block that the infested block is disguised as, and does not spawn the silverfish.

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

Natural generation[edit]

Infested stone bricks, cracked stone bricks, and mossy stone bricks are occasionally found in strongholds and igloo basements in place of normal stone bricks. Infested chiseled stone bricks also spawn in igloos.

Infested stone is rarely found in mountains biomes, generating below sea level in veins similar to ores. This type of generation can also override other already generated infested blocks. On certain versions of the game (i.e. Bedrock Edition), letting a silverfish enter any stone brick variants or cobblestone will turn these blocks into infested stone instead of retaining the texture like in Java Edition.

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

Creative mode[edit]

Infested blocks are available in the Creative inventory. When an infested block is destroyed by a player in Creative mode, a silverfish is not spawned.


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.

Data values[edit]


Java Edition:

Block ID Name
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 ID Name Numeral ID
Stone Monster Egg monster_egg 97

Block data[edit]

See also: Data values

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

DV Description
0 Stone Monster Egg
1 Cobblestone Monster Egg
2 Stone Brick Monster Egg
3 Mossy Stone Brick Monster Egg
4 Cracked Stone Brick Monster Egg
5 Chiseled Stone Brick Monster Egg



Java Edition Beta
1.8 Pre-release Added Block 97.
Java Edition
1.3.1 12w17a Block 97 is now labeled as stone monster egg, cobblestone monster egg, or stone brick monster egg depending on what kind of block it is.
12w21b Monster eggs are now available in the Creative mode inventory.
1.4.2 12w38a Stone monster eggs will now rarely generate in extreme hills biomes.
1.6.1 13w17a Silverfish will not cause monster eggs to break when /gamerule "mobGriefing" is set to false.
1.7.2 13w36a Added 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.
1.9 15w43a Monster eggs now generate among the stone bricks of igloo basements, with either regular, cracked, mossy or chiseled stone brick appearance.
1.11 16w39a Cobblestone monster eggs now generate in woodland mansions.
1.13 17w47a The 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.
Pocket Edition Alpha
0.9.0 ?Added monster eggs; the only way to create them in-game is with the help of silverfish.
0.11.0 build 1 Monster eggs now generate in extreme hills biomes.
0.16.0 build 1 Monster eggs are now available in the Creative inventory.
Pocket Edition
1.0 alpha 0.17.0 Monster eggs now generate among the stone bricks of igloo basements, with either regular, cracked, mossy or chiseled stone brick appearance.
1.1 alpha Cobblestone monster eggs now generate in woodland mansions.
Legacy Console Edition
???Patch 1Added monster eggs.
New Nintendo 3DS Edition
0.1.0 Added monster eggs.


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