Sources such as wowwiki and thottbot say that making mercurial adamantite is trainable from a GM Jewelcrafter at lvl 325. I am lvl 335 and have visited the GM Jewelcrafters in Hellfire Citadel, Shattrath City and now Netherstorm. I am given no options to train anything else, or to buy any recipes. Does anyone know where I can get this? I have also checked the Consortium Quartermaster in Netherstorm and he does not offer it either. I need help:)