Crystal

Crystal is a mined resource. It is required to construct a number of rooms and items of furniture in a dungeon and to upgrade certain creatures. It is initially placed in the mine it was mined from, but is eventually transported to the storage room.

Crystal costs 8 gold per unit when purchased from the black market.

Used to make (crafted resources):
Crystite Goblin Twine Mana Spark Prismatic Glass

Used to make (furniture):
Ashen Fireplace Coarse Mat Dark Nook Dining Table Drafting Table Ethereal Cube Fire Pit Jewel Case Keg Quiet Study Rickety Cart Slop Bucket Storage Crates Torch Training Dummy Treasure Chest Ward of Containment Warlock Bed