Cobblestone

Cobblestone is the first epic-tier block added to the game. It is a stone block that exploded during the planet's destruction. It got put back together as a block afterward.

It has no ability, but can be obtained anywhere.

Trivia

 * Cobblestone has the second-least health out of the epic blocks, only beaten by Aetherium.
 * This situation is the exact same for its durability.
 * Despite being cracked stone, it weighs more than Stone.
 * It is tied for the second-lightest epic block with Aetherium, only beaten by Stone.
 * It can form Evergrowth, Dense Cloud, and Crystal by forging it with other epic blocks.
 * Crystal is the most common to get in this way, however.