Crystal

s are a raw material used for crafting and gifting.

Obtaining
s can be obtained by quarrying rare blue crystal deposits with an Iron Pickaxe or higher. There are 2-3 deposits on Amber Island, a few within Amber Island's Cave (or the Haunted Cave), and another 2-3 in Collapsed Wasteland (see map in gallery). s within the Haunted Cave may respawn more frequently than ones outside the cave.

can also be grown on a Crystella Tree Seed in a Large Planter Box, both purchasable from the Church Store. Using Fertilizer and/or having the Farming Guru skill can increase the amount harvested.

Usage
is used in crafting several equipment and furniture items on the Worktable and late-game refined materials with the Factory. It can also be gifted.

Worktable
is a required ingredient when crafting the following items:

Factory
can be used to craft the following items:

Gift
can be given as a gift to other characters.