Spellcost: 250 spell points
Time: rather long time
With this sophisticated spell the caster can identify a magical gemstone and gain deeper knowledge of its qualities. The caster is able to discern to some accuracy what type(s) of bonus(es) the gem gives and how much. The spell also tells whether the bonus is of negative or positive type. This spell requires the skill mineral lore.
This spell requires the glyph of dimension.