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Silt Block
  • Silt Block item spriteold Silt Block item sprite
  • Silt Block placed
Stack digit 9.pngStack digit 9.pngStack digit 9.png
Placeable✔️ (1 wide × 1 high)
Use time15 (Very fast)
RarityRarity level: 0
Research200 required
Projectile created
  • Silt Ball
    Silt Ball

Silt Blocks are a type of soil that are very similar to Sand Blocks that start appearing from the underground surface (very rarely). Silt is affected by gravity and will deal damage to any player or enemy they fall on. Unlike sand, it can stop the Hallow, the Crimson, and the Corruption from spreading. It looks similar to Ash Blocks, but is a lighter color.

Silt can be placed on an Extractinator to spawn various valuable materials, including gems, coins, ores, and very rarely, the Amber Mosquito pet summoning item.


Silt blocks emit subtle dusty particles when walked or landed on.

  • When the Wall of Flesh is defeated for the first time, and the "Spirits of Light and Darkness" are unleashed, Silt Blocks inside the new Corruption, Crimson, and Hallow biomes will be converted to Ebonsand/Crimsand and Pearlsand respectively, much like regular sand. After this initial conversion, however, Silt Blocks are not affected by the spread of Corruption and Hallow.
  • Just like Slush and other forms of sand, it disappears when it falls on a rail track.
  • Using the paint sprayer on a falling silt block will not affect it.


  • Silt can be used in the same way as Sand to fill lava pits. It can also be used in creating traps, since it causes damage to whoever or whatever it falls onto.
  • Save up on Silt Blocks for when an Extractinator is acquired to obtain large amounts of Coins, Ores, and Gems. Along with the other Extractinator blocks, this is one of the main sources for the "alternate" pre-Hardmode ores.
  • Like other blocks that possess gravity, Silt can be easily harvested by digging below the block that is holding the Silt up then placing a Torch or Minecart Track under it. Then the last step is to break the supporting block & let the Silt fall in.


Used in[]

ResultIngredientsCrafting station
Gray StuccoGray Stucco (10)FurnaceFurnace
Green StuccoGreen Stucco (10) (Console versionOld-gen console versionMobile versionOld Chinese versiontModLoader versiontModLoader 1.3-Legacy version)
Green StuccoGreen Stucco
(10) (Japanese Console version)
Green StuccoGreen Stucco (10) (Windows Phone versionNintendo 3DS version)
Red StuccoRed Stucco (10)
Yellow StuccoYellow Stucco (10)
total: 6 row(s)

Extractinator items[]

With Silt BlockSilt Block / Slush BlockSlush Block
Item Chance Quantity Average Yield/1000
Platinum CoinPlatinum Coin 0.0073% 1–11 1.2758 0.09 (9)
Gold CoinGold Coin 0.1017% 1–100 10.3346 10.51 (1051)
Silver CoinSilver Coin 1.3534% 1–100 17.7843 240.69 (≈ 241)
Copper CoinCopper Coin 64.2145% 1–100 35.5588 22833.91 (≈ 228)
Amber MosquitoAmber Mosquito 0.01% 1 1 0.1
AmethystAmethyst 0.3333% 1–16 1.1775 3.92
TopazTopaz 0.3333% 1–16 1.1775 3.92
SapphireSapphire 0.3333% 1–16 1.1775 3.92
EmeraldEmerald 0.3333% 1–16 1.1775 3.92
RubyRuby 0.3333% 1–16 1.1775 3.92
DiamondDiamond 0.3333% 1–16 1.1775 3.92
AmberAmber 0.9598% 1–16 1.1775 11.3
Copper OreCopper Ore 3.9192% 1–16 1.1775 46.15
Tin OreTin Ore 3.9192% 1–16 1.1775 46.15
Iron OreIron Ore 3.9192% 1–16 1.1775 46.15
Lead OreLead Ore 3.9192% 1–16 1.1775 46.15
Silver OreSilver Ore 3.9192% 1–16 1.1775 46.15
Tungsten OreTungsten Ore 3.9192% 1–16 1.1775 46.15
Gold OreGold Ore 3.9192% 1–16 1.1775 46.15
Platinum OrePlatinum Ore 3.9192% 1–16 1.1775 46.15


  • Desktop 1.2:
    • Stack limit increased from 250 to 999.
    • Also can now be used in Stucco blocks and turned into "something more useful" via the Extractinator.