Fira
this was the traditional weapon used by the members of the Order of Shasa, on the planet Manaan. It was a curved sword which each member of the Order of Shasa had to forge on their own, using only metals found in the wreckage of a kolto harvester located in the Hrakert Rift. The harvester's plating contained cortosis, which made fira blades impervious to lightsabers. The forging of a fira was a time-consuming and dangerous project, since the cortosis-laden metal had to be shaped and annealed in the heat of underwater volcanic vents.