Zortron energy

Zortron Energy was a type of power source that was powerful but bulkly. The Quarsian pirate ship that atackd [Sartor]] were powered by Zortron Energy and was stored in huge amounts in the ship's engine rooms. Quarsian diamonds were known to harness the energy, which was wy the Quarsian pirates intended to raid the colony planetof Sartor and plunder its diamonds. (DWBIT: The Diamonds of Sartor)