Regicite

Regicite is a mysterious crystalline material that comprises the bodies of Regice, with trace amounts comprising the bodies of Regirock and Registeel. Trace amounts of a lower grade variety are incorporated into the bodies of the Vanillite line and Cryogonal. Thought to be more or less impossible to synthesize with current technology, despite its classification as a nonmetal it is capable of being magnetized and can easily conduct heat and electricity, as well as repair itself using only water.