Accepted answer: no
My gemcrafter locked himself inside of his workshop for a suspiciously long time. Eventually, he became "missing" and his yet-to-be-discovered corpse was releasing clouds of miasma. There are plenty of factors that could have caused this, but i will trt to add the ones i think have caused this:
He was working with Rough Onyxes (well, "trying", since he for some reason never actually got to work). I had plenty of food and drink, and the crafter had an assigned bedroom (one single bed). According to Dwarf Therapist, he was "content" before he disappeared, and he was not in any strange mood at that moment. It's not much, but it's all i can think of.
Note 1: I recently discovered his corpse (although it was visible that it was still in the gem workshop. The fact that it was "dehydrated" probably explains the miasma). So, why would my r gemcrafter isolate himself inside of his workshop?
