Dungeons/raids for farming for enchanting?
Using one of these two professions is how Enchanters who intend to make a profit gather their materials. They don't bother to run dungeons at all. They do run Looking for Raid to acquire Sha Crystals at max level however.
If you do not intend to sell your enchants you don't have to worry about a steady stream of supplies. You can simply buy what you need from the Auction House. You can often find materials that are not difficult to acquire for fairly low prices if you keep an eye on the AH. You also do not need a single Greater Eternal Essence to reach Enchanting 600.
The add-on Enchantrix will tell you what kind of dust/shards and item will give you if it is disenchanted.
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