Well, it is a nice Idea, but thinking it a bit further, it would make sense that hunting also gives bones.
For the mining: even if there is only one specific location for mining one material, there would always be a very small chance to get a better material than the one you’re looking for. As an example: When mining stone, there will also be a chance to find an iron-ore, jewels, or obsidian (even mithril or adamantium would be possible with like a 0.001‰ drop rate).
that is also true, however with bones I can see them being left behind in favor of the meat and Leather as a person can only carry so much unless they bring it back whole and disassemble it in the mansion or a specific area on the mansion grounds, which could also work, as for the chance to find more precious minerals I thought of that too but no sure how one would make that work, as progress is made per tick in a certain amount by location, Could also technically put in Mana and Life shards for Mining, as they are pretty much stones that have absorbed magical properties, should probably have them drop specifically from the veins of Iron (Life) and Mitheral (Mana), that is if we can figure out how to get the rare drop chance to work
Since there is no exact information on either the hunting method nor the size of the gathered bones, it wouldn’t be strange for small pray like rabbits to be taken home before disassembling.
That the hunting knife gives a bonus to hunting but bow don’t also support, that the hunting is based on traps and targets smaller pray.
And yes, I am aware that it might be simply a decision in the game design or a problem with the system.
As for the mana and live shards, I’m not sure, what they are (I might have missed or forgot an explanation). But since I found them after fight or in tressures, I assumed they are some kind of “organic” material forming inside of living creatures at some conditions.
I always assumed they were just useful to Humanoids, like bandits etc. so that's why they carried them, or stockpiled them but I always kinda figured they were like a gem that had absorbed an absurd amount of Mana or life force and the player can use that to resupply their own diminishing supply, sort of like a soul stone from The Elder Scrolls...
