Mese (sometimes called MESE) is the rarest material, found mostly underground. It can be found above ground on rare occassions and is in 0.4, but there is a greater chance of finding Mese deep underground. Mese is used for crafting Mese Pickaxes.
| Quote from the Developer Wiki
The origin of the block is just plain random. In the early days of the game I [celeron55] needed to add something to be mined from the ground, and ended up with this humorous nonsense block, and haven't removed it from the game from since.
|Name||Ingredients||Input → Output||Description|
or Steel Ingots
|Required to mine stone-based blocks.|