|Type||Block – Crafting material|
Ebonstone Blocks are the blocks of which the Chasms in The Corruption are primarily composed of. These blocks encase Shadow Orbs and most Demon Altars. They can only be mined with a Nightmare Pickaxe or higher, Dynamite, and Bombs. Using Purification Powder will turn them into ordinary stone blocks.
Placing 200 of these blocks causes the current biome to transform into The Corruption or Underground Corruption biome, which will spread and spawn their mobs, such as Eater of Souls and Devourers. This can be used to the player's advantage to make a suitable arena for fighting the Eater of Worlds. Deathweed can grow on Ebonstone.
 Used in
- 1.2: Stack limit was raised from 250 to 999.
- 1.1: Can now be destroyed with bombs, not just dynamite.
- Pre-Release: Introduced.