Have you shown the Emerine Stone to Dulrig? You can mine them at the Golem's hideout which is located behind the mid left door of the Munbury cave complex. It's behind a wall and you need.. I think it was.. high perception?
He should be telling you about wanting to visit that hideout himself at around 15 likes or so. The 'Munbury Trip' is then available every 4 days btw.