These are fairly difficult to get to before you've
The nice thing about Nether-cite deposits is that they also have a good chance to contain motes of earth and fire. However, without having started the Nether-wing quests at Nether-wing Ledge, you will be hostile to the 3-5 peons nearby, and therefore these are fairly difficult to get 4story Luna to before you've acquired your epic mount. Also be aware of the roving elites, who remain hostile even when you appear to be a fel orc.
Herbalism: Felweed, Dreaming Glory, Mana Thistle, Nightmare Vine, Netherdust Bush. Nightmare Vine happens to be the unique herb of this zone, and can be found almost everywhere, though the area northeast of the volcano in the center of the zone has many possible spawning locations.
Felweed is also possible to find just about anywhere, while Dreaming Glory is found around the volcano for the most part. Mana Thistle and Netherdust Bushes can be found at Netherwing Ledge, though the same warning applies when all enemies are still hostile.
However, the herbs tend not to spawn directly next to peons, but instead in the middle of the various paths in Netherwing Ledge, so they are more collectible. Netherdust bushes occasionally drop Motes of Mana in addition to Netherdust Pollen, which is turned in for Netherwing faction.
Primal Air: The air elementals to the south of the crystal fields in the southeast corner are good to farm for motes of air – they're found all along the ledge that runs along the edge of the void.