Np. Just let me know if artist is needed

But one thing I don't understand. Why there are zillions of combinations? Even BG2 don't have so much and there are a lot of weapons there.
If I were on your place, I would do icons for every weapon type. Lots of materials. No problem. Just change colour/texture of allready created icons for regular weapons. That's not lot of work for the artist.
For the enchancement (magic wepons), just some (blue) glow around regular icons. Players will anyway read the description of a weapon so there is no need to do something completely irrelevent. That leave us only with icons for special/artifact (named) weapons like in BG.
So if we do some math:
In your weapon list is 46 different weapons
There is 6 different materials
Adamantine
Darkwood
Dragonhide
Iron, Cold
Mithral
Silver, Alchemical
------------------------------------------------
= 276 icons (that's not correct number because some weapons can't be made of all materials, but this is max possible number to simple our calculation)
------------------------------------------------
+ glow for this 276 icons
------------------------------------------------
=552
------------------------------------------------
+ special weapons
---------------------------------------------
= lets say 600
--------------------------------------------
To summ up there are about 100 different icons, rest are only iterations.