What is a chaos clawstone from tales of pirates

A chaos clawstone is an item which holds extremely high stats used for fusing into a gloves of any character (the gloves that come with no stats from cash shop (forget name, havent played for a while :P)) anyway it can be given to any class any character (or maybe only lance) but they are worth alot and give like +20 for every stat and more. but they cannot be worn unless first fused to an equip.