I'm sorry if I asked in the wrong place (it is my first ever question).
I have been thinking of a whole new system for the materials of the world, based on our periodic tables (sort of). The idea is that each one of the material has their own characteristics and behave in a specific way - which is similar to our world.
But in this world - like many others - there is war, and with war comes different weapons. The problem is that I have trouble figuring which material would make the best sword, or which one could be used as cutting tools or saws. After some thoughts, I believe that the toughness and weight of the weapon plays a role along its shape (like a thin blade of iron would cut a lot as opposed to fabrics which can't wound someone, whatever the quantity and shape). But I also know that a diamond sword would make quite a bad weapon. So I trust that there something else to take account of.
Therefore, my question is, what sort of characteristics should my materials have to describe / evaluate their potential sharpness ?
I hope I am not making a duplicate and thank you in advance for your answers.