Would it be possible to add some of the following resources? (perhaps if I think on them and give you the stats to make?)

Uranium lumps and Cruxite (minestuck)

Ironwood, Naga, Steeleaf, Fiery ingot, knightmetal for use in twilight forest.

aether wood, Zanite, enchanted Gravitite (Aether legacy) and potentially Valkyrie, if you can make a way to create ingots for it. possibly through salvage of old valkyrie equipment.

and maybe new weapons that appear when used with other mods, like dungeon tactics battle hammer, battle axe, glaive, Cutlass and Cestus. or yoyos from yoyo mod even.

I don't want to add new tool classes to Gems (maybe Silent Gear if they have a place), but I'll look into the materials when I have some time.