So I bought Orsinium and was doing writs and surveys coming from them and gathering resources wherever quests took me for a few days, and I was wondering why I wasn't getting any nirncrux. Then someone pointed out to me that nirncrux is found, as per the story and lore, only in Craglorn.
I stood corrected. Still, I'm not sure why getting 10/10 in crafting passives as opposed to 9/10 should penalize you by denying nirncruxes to you. Planemeld between Craglorn and Orsinium?