Monster Egg

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Monster Egg
Cobblestone.pngStone.pngStone Brick.pngCracked Stone Brick.pngMossy Stone Brick.pngChiseled Stone Brick.png









Blast resistance





Any tool




Yes (64)



First appearances

See History


Spawns 1

Data value

dec: 97 hex: 61 bin: 1100001



Monster eggs (also known as Silverfish Block; called Silverfish Stone, Silverfish Cobblestone, and Silverfish Stone Brick in the Console Edition) are a block that spawns silverfish when broken. Monster eggs have identical looks to either stone, cobblestone, or stone brick.

Obtaining[edit | edit source]

Breaking[edit | edit source]

Monster eggs take the same amount of time to break with any tool. When the block is broken, whether by a player or by an explosion, a silverfish spawns where it was broken.

Monster Egg
Hardness 0.75
Breaking time[note 1]
Hand 1.15
  1. Times are for unenchanted tools in seconds.

Mining a monster egg with a Silk Touch tool drops the block that the monster egg is disguised as, and does not spawn the silverfish.

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

Natural generation[edit | edit source]

Stone brick, cracked stone brick, and mossy stone brick monster eggs are found in Strongholds and igloo basements, occasionally in place of normal stone bricks. Chiseled stone bricks monster eggs also spawn in igloos.

Stone monster eggs are rarely found in the Extreme Hills biome.

Cobblestone monster eggs do not generate naturally, and must be made artificially.

Creative[edit | edit source]

Monster eggs are available in the inventory in creative. They can also be made by placing a stone, cobblestone, or stone brick and then using a silverfish spawn egg on it. Attempting to add more silverfish into the block will result in the silverfish spawning normally. When a monster egg is destroyed by a player in Creative mode, a silverfish is not spawned.

Usage[edit | edit source]

When mined, monster eggs 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 monster eggs will break, spawning other aggressive silverfish. If the silverfish is killed in one hit, nearby monster eggs will not break, and no silverfish will spawn from them.

Data values[edit | edit source]

Block data[edit | edit source]

See also: 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

Block state[edit | edit source]

See also: Block states
Name Value Description

Stone Monster Egg
Cobblestone Monster Egg
Stone Brick Monster Egg
Mossy Stone Brick Monster Egg
Cracked Stone Brick Monster Egg
Chiseled Stone Brick Monster Egg

Video[edit | edit source]

History[edit | edit source]

1.8 1.8-pre1 Added Block 97.
Official release
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.
Pocket Edition Alpha
0.9.0 Added monster eggs.
0.11.0 build 1 Monster eggs now generate in extreme hills biomes.

Issues[edit | edit source]

Issues relating to “Monster Egg” are maintained on the issue tracker. Report issues there.