Returning to the academy
Normally when the students of the academy find some kind of resource or treasure there are a few possible scenarios, depending on the value of the thing the teacher has the right to confiscate the it, of course the academy won't rob its students.
But there are some materials which enter in the strategic resource category, such as mithril, orichalcum and antinite for example, so in those cases the academy had an agreement with the big forces and families.
The force from which the student who found the thing came, would receive half of it, the other half was kept by the academy not without giving a proper compensation to the student in mana stones or other things.
That being said the teacher didn't always do it, ultimately it was up to its criteria, in the case of the elite class, Boris and Aliya of course didn't have any ideas for the things Daimon and the others found.