All the components mixed in minerals are sorted and compacted during their transit through the xorn's digestive tract. A true living ingot-casting machine! Such an anatomical peculiarity is a boon for miners, since it requires no fuel or chemicals. Provided one is willing to give up gemstones of any kind, one can get a lot out of a xorn. Thus, certain communities enslave xorns to exploit them. One must be careful, however, as the elemental can react violently when it panics or feels in danger.