I can pretty much rule out a loony dwarf's matereal preferences in making artifacts. I've recently had dwarves who liked Granite and Rock Crystal go nutters on me.
The one who liked Granite wanted wood, stone, blocks, and rough gems. He took everything except blocks and gems, I checked and found Granite blocks in my bins. I slammed out orders for more grey blocks, some light and dark blocks too. To no avail, after a month or so of waiting and 15 or so assorted blocks in my piles he went beserk. The dogs got him, I assigned him two when he went loony and he attacked them fist.
The one who liked Rock Crystal was a fisherdwarf who moped around untill I build a glass workshop. Then he wanted cloth, rough gems, and shell. He didn't grab anything. I only had spider silk available as cloth, couldn't make others for lack of correct plants and barrels/bags/vials. Had both turtle shell and cave lobster, cut and uncut Rock Crystal. He just sat there untill he decided to go drown himself.
I've never noticed a correlation between a dwarf's personal preferences and artifact construction matereals.
Edit: I currently have a morbid bunch of dwarves.
Zeberelot Kon Athel, "Smoulderbuck the Master of Rings", A Moonstone coffin. Decorated and spikes of Moonstone.
Alakilid, "Aceruled", a Acacia casket. Bands and images of dwarves in Acacia.
Kironnin, "The Holy Toe", a Felsite mechanism. Bands of silver, spikes of Andesite, images of roaches in Felsite, images of roaches in Andesite.
Bloody loonies.
[ October 02, 2006: Message edited by: Telok ]