there was some issue with 'u'sing fire crystals. like they did not damage mobs or something along this. I will search my notes for exact effects of crystals alter on. Soirana 14:30, September 10, 2009 (UTC)
Blessed crystal of knowledge does not always grant a learning increase, not even when you only have Learning at 7 :(
Added relative gem values
184.108.40.206 09:48, May 25, 2015 (UTC) Bob (unregistered)
Why does some heaps of gems not stack? Bl/un/cu status is identical.
If unId several gems fall under the same name. for example, green one can be glass, emerald or crystal of knowledge.