N² Mine
N² Mine is a fictional bomb that has the yield of a nuclear bomb while only relying on chemical explosives, hence the name is a stylized numeronym for "non-nuclear". It has a blast radius of 200 blocks. Since the N² Mine is non-nuclear, it does not produce any radioactive byproducts like fallout, making it useful for large-scale demolition and war without major environmental consequence.

Crafting
The bomb is assembled with the following recipe:
Detonation
The bomb requires 12 large explosive charges to fill it before detonation is possible.

Effects
Upon detonation creates an explosion as powerful as some nuclear bombs. It has a blast radius of 200 blocks. No fallout is produced.
Trivia
It's a reference to N² (Non-Nuclear) Technology from Evangelion. [1]