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Alum is a mineral that is primarily used for creating dyes.

Crushed alum


Alum can be found as an ore in sedimentary rock. Alum chunks may also be sold by the commodities trader. Mining a block of alum produces alum chunks.


Alum chunks must first be crushed in a pulverizer to produce crushed alum. Crushed alum may be mixed with water in a barrel to produce diluted alum, which is necessary to produce nearly all dyes.

Ores, metals and minerals
Guides Ore Deposits Metals
Metals Copper Iron Meteoric iron Gold Silver Lead Tin Zinc Bismuth Titanium (Ilmenite)
Alloys Bronze (Tin bronze, bismuth bronze, black bronze) • Steel Brass Solder (Lead solder, Silver solder) • Molybdochalkos
Minerals Alum Borax Cinnabar Coal Halite (Salt) Lapis lazuli Quartz Saltpeter Sulfur Sylvite (Potash)
Tools Pickaxe Hammer Prospecting Pick Forge Quern Anvil Bloomery Helve hammer Pulverizer
Other Gemstones
Related mechanics Panning Mining Casting Smithing Steel making