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