Dungeon Bricks

Dungeon Bricks are a non-craftable type of Brick that the Dungeon is constructed out of.

Description
On world generation one of a variety of colors of brick is chosen to create the entirety of the dungeon out of. They are a coveted building material, as they're twice as strong as normal bricks and are completely impervious to explosions. A player can get them by mining, but they become relatively harder to mine in lower layers of the dungeon because of the monsters.

An uncraftable world generated item, there is a huge (but finite) number of bricks generated per world. Unlike other craftable bricks, it cannot be used to create a wall of the same color. These walls do exist, but must be taken from the dungeon as well. Remember, the type of brick will not always be the same as the type of wall, this only happens 1/3 of the time.

A Nightmare Pick is required to mine it.

Patch Notes

 * 1.0.4 A Nightmare Pickaxe is now required to mine them, unless they're near the spawn.
 * 1.0.5 The Dungeon Brick tiles had their brightness reduced. The item icons remain the same.