Sarium

Sarium was a material.

Starfleet of the mid-22nd century used sarium microcells in powering a variety of their technologies. According to Veylo, the Vissians also used sarium microcells to charge their weapons. 

A Vostigye space station destroyed by astral eddies in 2373 was constructed of sarium, boronite, and carbon-60 composites.