T'evallion Crystals

An incredibly rare and significant crystal, T'evallion crystals are naturally occuring crystalline structures which are thought by some to be pre-sentient. They are extremely useful in computing as they have a natural affinity, but the M'darin have repeatedly warned against their use.
Initially their use could not be ignored due to the incredible advances made possible in computing. DAEV, an experimental AI construct changed all of that in the AI B4 Dawn incident.