Concrete

The  is a Terrain introduced in the 12.0.0 update.

Appearance
It appears as a 3D block with dark gray concrete on the top, gray concrete in the middle and light gray concrete on the bottom.

Use
It is used to greatly increase the chance of pets hatching.

Trivia

 * Despite it being called "Concrete", it looks like dirt or soil painted in shades of gray.
 * However, it may be possible that it is wet concrete and not dry concrete.
 * This terrain's block model doesn't have to do anything with Minecraft blocks.