Emerald

Emerald is a crafting material used to make Crystal weapons, armor, and ammo. It is primarily obtained from the large crystals found in Deep Swamp Caves within Crystal biomes. Large crystals drop several Emeralds when broken, and smaller crystals can occasionally yield one when mined.

Emerald can also be found during any Crystal Incursion, making that event another reliable way to collect it once you have access to the relevant biome content.

• Large crystal nodes are the main source and are the most efficient way to gather Emerald in bulk.
• Small crystals are a minor source, but they can still provide extra Emerald while exploring and mining.
• Since it is tied to Crystal biome content, Emerald is most useful once you are progressing into Crystal-themed gear and ammunition.