Odins Sphere alchemy question

[Caine]

i just play the game for 3-4 hours, wow a gem! it really grows on me, one question though, i got 2 recipes so far but i only can use material 0 and material 2, but i combined wrong as i wanted to try out and got material 8 now, i cannot do something with it, only combining brings me more but no recipe so far for it, so is the only way dropping it or selling?