Stone Bricks

Stone Brick is a new block type that was implemented in the 1.8 Beta update. Stone Bricks are one of the materials that are used in the Strongholds.

Crafting
Stone Bricks can be crafted by placing 4 Stone blocks in a square.

Trivia

 * In the file "en_US.lang" is a reference to this block "tile.stonebricksmooth.name=Stone Bricks".
 * The insect mob known as Silverfish spawn from Stone Bricks.