Appraisal skills were the tough part out of all of this. The materials coming had to be appraised to make sure they were what everyone believed them to be. It was also the key to ensure that they would be able to find new items without any waste in the chance that these items were dangerous.
Alma, Gil, and Remey were considering this while they noticed the few people that had actually come forward. It wasn't that there were no people with appraisal skills available, but the fact that those with the skills could not use them well enough.
The lowest tiers of appraisal skills would more or less just give a name. Some of them would just say, this is an ore of higher quality. That form of appraisal was not as valuable as people realized. Just because it was a form of appraisal did not mean that the skill would give them any more information than what could be found originally.