This was such a neat game!! The visuals were beautiful, and the sound design was quite nice as well.
I agree with some of the other comments that the mine itself could maybe be improved a bit - I didn't mind mining the resources themselves, the sound effects and visual polish made them fairly satisfying to mine, but I did spend a lot of time just kind of wandering around mining for resources. Being able to freely reset the resources was beneficial here, but I do think that maybe having more resources closer together could be nice to cut out some of that 'wandering around on a blank screen' feeling. Maybe also adding in some various visual elements to break up some of the background, like random rocks or making the ground get darker as you go downwards? I'm not sure. I also think that having a stronger gradient of easier materials towards the top and more valuable ones towards the bottom might have made the progression feel more meaningful. Regardless though, I thought this game was super polished for a jam game! The progression felt good, I found the game a lot more engaging once I figured out the teleport item existed, and I liked the sound a lot. Great work!