In my universe, there's a very rare and valuable metal called Draconium. It can only be found in extreme small quantities in the core of a select few planets. Without the proper tools, it's nearly impossible to extract and refine, and the 8 cubic meters that the SnowStone Corporation extracted and refined during it's "Magma Filtering Project" at one of the remote planets of the Tek system is currently the only known find.

Draconium Alloy is an alloy of Steel, Titanium and a tiny fraction of Draconium, the latter having some rather peculiar effects. It makes the alloy lighter, sturdier, and as good as impossible to dent or damage by conventional means. Tests so far has found that nothing short of spacial manipulation can break through a ship with this alloy as it's armor. This alloy is commonly used in the Prosthetic made at the Cybernetic Division, making them strong and light, and not in need of service. The SnowStone Vault, where all the refined minerals are stored, is also made of Draconium Alloy, along with the Capital Tidenclaw, it's main battleship.