From Terraria Wiki
Although these objects are themselves impervious to explosions, they will not shield other objects from explosions. Explosions will destroy any vulnerable blocks within their radius, even if explosion-proof blocks are in the way.
Items[edit | edit source]
|(only in pre-Hardmode)|
Notes[edit | edit source]
- In addition, any block directly beneath a Demon Altar, Crimson Altar, Tree, or a Chest containing items will survive explosions.
- Surprisingly, Sturdy Fossils won't resist explosions even though the "normal" Desert Fossils will, despite being called Sturdy Fossils.