Great Hyperspace War Campaign
Cortosis ore is a very rare mineral that can only be found in a few planets in the Outer Rim.
Hardly anyone know of its existence, and for those who do, only a few of them are actually aware of its awesome properties.
It is a very brittle mineral, but its sought after due to its unique conductive properties. Upon contact with a lightsaber, it is able to cause a minor short in the circuit that can immediately shut off a lightsaber.
Not much is known regarding the mining methods required to obtain Cortosis ore. However, it is known that the ore needs to be refined, and woven into a fibre mesh in order to efficiently utilise its desired effect.