Silt is rich, granular soil deposits. It spawns on the ground in piles of 10, generally near bodies of water, and is free for anybody to pick up.
- 5 silt plus 1 sand used in a Flimsy Brick Mould will make 6 Wet Firebricks.
- 10 silt plus 2 sand used in an Sturdy Brick Mould will make 12 Wet Firebricks.
- Can be used in a Brick Machine to make up to 900 Wet Firebricks depending on the upgrade level of the machine.