Yaret-Kor

The "Lava Cannon" or "Plasma Cannon" is the primary intership weapon of the Yuuzhan Vong. It works on a very simple principle: the cannon takes in stone or other massive materials, and then heats them up and expels them again. Cannons that are smaller grade or under low repair can only heat the material to the melting point, while more powerful cannons can cause it to become plasma. The plasma deals much more damage, but the lava will sometimes stick to the ship and continue to eat through the hull, long after the original impact. As with all Yuuzhan Vong technology, the cannon is actually biological.