Lately, I've been playing a campaign located in Belkzen territory, about a new ship falling down on Golarion and bringing a new heap of adamantine with it, a la Numeria/Starfall.
Skipping the potential cataclysmic aftermath of a mountain sized ship crashing at terminal velocity on Golarion (again), we're thrown in an rush to the adamantine, as there is plenty of gold to be made and scattered tribes of surviving orcs to be slain.
But recently, my group and I have been nagged by our DM about the slightest things in the campaign (mostly payback for the group not getting along OOC - another story). Last argument is: "your Expert smithing NPC does not know how to work adamantine , as it is only present in Numeria and the secret has not got out of the Technic League".
Now, I get around with the lore, so I would say it's wrong, as far as I know. A few counter-examples are:
- The Adamantine Golem, from Bestiary 2, which is so expensive in adamantine that one needs to travel to the Earth Plan to gather enough to build the construct.
- Adamantine weapons and armor in general. I can't remember the source, but there is a merchant in Last Wall (GM favourite nation ever) specialized in adamantine weapons. (Even give discounts to characters already using adamantine gear).
- The novels City of the Fallen Skies & Reign of the Stars by Tim Pratt, explaining quite a bit about skymetal and adamantine .
Now, those are at most circumstantial evidences, since none exactly quote "Adamantine is used and worked all around in Golarion" and my GM can be quite stubborn.
So I'm looking for any additionnal sources pointing at the fact that Adamantine can be smithed by any quite skilled smith, coming from the Technic League or not.