Desert Fossil

Desert Fossil is a type of block found in the Underground Desert biome. Mining it requires either a Nightmare or Deathbringer Pickaxe, but unlike similar materials, it cannot be removed with explosions.

Desert Fossils can be used in an Extractinator to produce a Sturdy Fossil.

Trivia

 * This is the only block that can be used in the Extractinator that does not fall.