The reservoir water is relatively close to saturation with respect to most minerals observed in the system including quartz, albite, chlorite, epidote, prehnite and pyrite.
Djúpvatnið reiknast fremur nálægt efnajafnvægi við allar greindar ummyndunarsteindir, þ.á.m. kvars, albít, klórít, epídót, prenít og pýrít.