Ko'raa

Ko'raa, also known as Echani glass, was a remarkably resilient and transparent crystalline material, made from the indigenous minerals of.

Although not as hard as some of the galaxy's hardest metals, Echani glass was known to have exceeded in terms of durability. The most renowned quality of Echani glass was its ability to be sharpened to equal the thinness of a single molecule, which gave one of the namesakes of the Echani Zahkrii, monomolecular blades.