Ah, I see. Adding to that, what's the nature of the magic? To clarify, I would like to describe how the energy circulates within the amulet, what it feels like from a metaphysical perspective.
Um..... Totally didn't think that far.....
If I have to said, then gems and rare mineral back in his world hold a certain attribute that let them absorbed the ambient mana/ether, and then released them outside with an imbued aura/attribute that any living creature could them absorbed. So, I kinda treat mana absorption like breathings and O2, kind of, and by absorbing said attributed mana, and have that mana circulated within one body could enhance certain aspect/attribute. Some imbued mana could be dangerous, however.
In a sense, mineral and gems in that world could 'breath mana' like plants, and converted attribute-less mana into attributed mana, and help enhanced/accelerated/boosted one physque/recovery/casting. That is how I would go on and explaining thing like mages' staves, which could be inlayed with silver or gold as a way 'highway' for mana to circulated between the user and the catalysis (gems) engraved on the staff. Certain gems, like ruby, could boost and accelerated certain element and attribute, like flame and destruction.....
But, this is a new world, so the amulet and the gems could be affected by the new physic of that world.
