Spell Components

Magic comes from Spell Dust. Spell Dust can be found by mining for Spell Ore. No tool is required to harvest Spell Ore. It spawns at the same depths as iron ore. Once you have Spell Ore, just put it on a crafting grid to make 4 Spell Dust.

Corrupting Powders
Once you have Spell Dust, you can make more by corrupting other dust items: put Spell Dust both above and below the item to be corrupted. The amount of Spell Dust gained depends on the powder corrupted:

Redstone Dust is particularly magical. You can place Blue Dye directly above and below Redstone Dust to corrupt the Redstone into 2 Spell Dust; this is the only way to get Spell Dust directly without first mining it.

Do also take note that Sugar in particular can be farmed, meaning once you have Spell Dust, you can continue to make more as long as you hold onto enough to corrupt more Sugar.

Compact Components
Spell Dust can be compacted into Spell Gems, allowing for more compact storage; Spell Gems are also required for StaffCrafting and upgrading Robes. Place 4 Dust into a 2x2 square to make a Spell Gem. A Spell Gem can put into a crafting grid to revert it back into the 4 Dust.

Spell Gems can compacted further into Spell Cubes by placing 9 Spell Gems into a Spell Table. A Spell Cube can be put into a crafting table or spell table to get the 9 Spell Gems back.

Spell Cubes can also be placed as blocks for decoration; they can be broken without any tool to recover the cube. For further decoration, put two Cubes next to each other on a table to make 4 Spell Slabs; two Spell Slabs on top of each other on a crafting table returns a Spell Cube.