Crystallized Seasons – Google Docs
Crystallized Seasons
Cost: $25 to $250, depending on the supply
The seasons of the year have occult significance in mana-rich worlds, of course: and in some places (typically, high-mana areas) the change from one season to the next can cause the old season to more or less crystallize out of the air. This turns them into limited-college Manastones (GURPS Magic, pg 70), with the caveat that mages cannot actually create Crystallized Seasons: they’re the equivalent of a renewable resource, like bat guano. And, like bat guano, if somebody wants to collect the stuff regularly they’re going to have to be careful about it. Over-mining the areas where Crystallized Seasons occur can wreck it for further exploitation.