Silt Block

Silt Blocks are soils very similar to Sand Blocks that appear at cavern layer. Silt Blocks are subject to gravity and will deal damage to any player or mob they fall on. Unlike sand, Silt Blocks are immune to the Hallow and the Corruption. Silt Blocks look similar to Ash Blocks, but are a lighter color.

Silt can be used in the same way as sand, and can be used to fill lava pits. It can also be used in creating traps, since it causes damage to whatever it falls onto.