Magical Stones.
- Widely believed to be the crystralized blood of Gods.
- There are two types: Living and Dead.
- Living Crystal can be attuned to users, which provides the magical power of its own.
- Dead Crystal are more numerous, with no intrinsic power of their own.
- Baranwolf the Imposter analyzed them in An Analysis of the Crystals of the Gods
Source: Guide to Glorantha