Stone Block

Stone Blocks are found throughout the world, but are most prevalent deep underground, where they compose the majority of the Cavern layer.

They have hallowed, crimson and corrupt variants: Pearlstone, Crimstone, and Ebonstone, respectively. When hardmode is turned on, nearby Hallowed or Corrupt blocks will turn regular stone blocks that are up to three squares away into their Hallowed, Crimsoned or Corrupt variants. Using Vile or Purification powders on it will turn it into regular stone. It can then be mined with any pickaxe or with explosives. As of 1.2, naturally generated stone blocks deep underground will have moss on them, a cave variant of grass.

It's used to make a variety of Bricks, in addition to Statues, Furnaces, and even Wooden Arrows.

History
Bloc de pierre Каменный блок