Gregtech worldgen:
Bauxite, Cinnabar, Cooperite, EnderAsteroids, Iridium, Olivine, Pyrite, Ruby, Sapphire, Sodalite, Sphalerite, Tungstate
A few of them are for the Nether or for the End.
Mystcraft mining should work, as soon as MC is added back to the MC pack^^ (mystcraft to the minecrack pack). It was left out currently because of a few bugs.