Xychoridite is the "ingot" form of Xychorium. It is used in many of the XyCraft recipes as a base resource. They come in the 5 Xychorium types: Blue, Green, Red, Dark, and Light. They are mainly used for the creation of decoration blocks. In the upcoming XyCraft Machines expansion, they will have many more uses.
Xychoridite is obtained by smelting Xychorium Gems in a furnace of your choice.