Bedrock

Bedrock is a fairly common ore and spawns at 500 blocks below the surface. It serves as a barrier between the overworld (dirt/stone) and the underworld. Sometimes, you can find Cracked Bedrock.

Cracked Bedrock
Cracked Bedrock is similar to regular Bedrock but has some differences. Unlike bedrock, it can be destroyed via a Detonation Charge or Dynamite and thus serves as the only legitimate way into the Underworld. It also has a cracked texture.

Associated Achievements
Brave Explorer - Discover Bedrock for the first time.