Mycelium

Mycelium is a Block.

Collection
Collecting Mycelium increases the player's Mycelium Collection, which grants useful items and perks upon collecting certain amounts of Mycelium.

Mining
Mycelium can be mined in the following locations in the :

Trivia

 * Not long before the leak of the information of new collections of Crimson Isle update about Mycelium and Red Sand collections, the ability of obtaining Mycelium, including spreading onto dirt and buying from trades menu, were removed. This was likely for preventing stockpiling by alpha testers.
 * As released on April 20, 2022, mycelium spreading onto dirt has been re-enabled.
 * Collecting Mycelium turned from Dirt on Private Islands does increase collection, that is unless the dirt block was placed by a player.