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The Purple Mucos is a dye material that is dropped by Sea Snails, which only spawn in the Ocean biome. Its sole purpose is to make Purple Dye.
- Mucos (as it is spelled in-game) is a misspelling of mucus.
- Though already a liquid, it cannot be used as a dye until you craft Purple Dye with it.
- The ancient Phoenicians used murex (a species of snail) to make purple dye, which was often worth its weight in silver.