Caloric Stone

Caloric Stone is a World Class Item once under the possession of Ainz Ooal Gown.

Description
This World Item is unique in which it can be obtained in various ways. One is by mining a special mineral from the Seven Hidden Mines.

Deep within the Azerlisia Mountains there are also mine deposits of caloric stones and are used by the dwarves primarily as a heating source, illumination, cooking etc. as an alternative substitute to using wood and coal.

Abilities
The Caloric Stone has multiple uses, from being used as a golem's core to enhancing weapons or even armor.

Trivia

 * It is still not clear if the Caloric Stones in the Azerlisia Mountains and the World Class Item used in YGGDRASIL are one of the same.