Cortosis

Cortosis is a fictional metal found in the Star Wars universe. It is known for its exceptional ability to block or disrupt energy-based weapons, particularly lightsabers. This unique property makes weapons and armor made from cortosis highly valuable for combat against Force-wielding opponents.

The metal is described as being extremely rare and difficult to mine. Its properties are so effective against lightsabers that direct contact with a cortosis blade or shield will typically cause a lightsaber to short out or deflect harmlessly. This has made cortosis armor and weaponry a significant advantage for those facing Jedi or Sith.

Cortosis has appeared in various forms of Star Wars media, including novels, comic books, and video games. While its exact composition and origin are not fully detailed, its primary function as a lightsaber-resistant material is a consistent element. The scarcity and powerful defensive capabilities of cortosis contribute to its legendary status within the lore of Star Wars. It is often depicted as a crucial element in specialized military equipment designed for anti-Jedi operations.