Before the Breaking, The great mages were free to research the source of magic on the planet, which they determined to be a material known as Aetherite. These glowing crystalline shards were found throughout the world, though not often near the surface. A shard of Aetherite the size of a fingernail would buy a man a farm if he were to come across it, and it functioned as a currency among the very wealthy. The dwarves supplied Aetherite to the mages and mythril to the warriors of the coalition from their deep mines, with the Duergar performing the mining operations for the Empire.
Only some of this knowledge survived the breaking, however, it has been discovered since the invention of the astral ship that only allods with sufficient deposits of aetherite remain inhabitable. Therefore, the remaining mages of the allods work tirelessly to protect and carefully control the aetherite on their respective allod, lest it be stolen or destroyed, which would surely result in the death of the allod.