I'm trying to make Dwarven Wakanda by adding a syndrome to Adamantine that increases the physical attributes of dwarves, basically making them mutants.
So far, I've managed to add a syndrome to Adamantine proper that will enter blood when it pierces the skin (I think), which means that either using strands in a hospital or wearing Adamantine earrings should induce the syndrome. It would also mean that anything hit by a weapon made from Adamantine might infect something with the syndrome, so I might just remove the injected part maybe.
The other thing I managed to do was create a secondary stone that, functionally, looks like Adamantine (same color, same tile on tileset, ect.), but turns to gas/dust once it hits air because it has a lower boiling point. I then added this material as a byproduct to smelting adamantine wafers in reactions, so any dwarves on furnace duty become mutated.
Just recently, I added a plant that carries the syndrome, and made it so that it only shows up in savage mountains. That way I'd have access to it, since I like embarking on swamps that border savage mountains, and so that other races won't have access to it under normal circumstances.
So far, everything seems to have worked in the arena, but I'm still in the process of testing it in game.