Patch 4.0.3a removed most of the monsters which had high Deeprock Salt drop rates. It still has a decent drop rate from earth elemetals and stone giants in the Earthsong Falls section of Maraudon and golems in the Blackrock Depths dungeon.
As an ingredient
As a quest objective
- Patch 6.0.2 (2014-10-14): Stacks to 200, up from 20.