I'm learning a whole ton of things here. Not just about minerals and how they're being formed, but also how their value is measured in various ways. It's also good to see Ruri learn more about them, but I guess what stood out the most was how Nagi teaches her not just about the minerals but also about treating each one properly with respect to nature. Really love how it's going so far, and the soundtracks are so relaxing; I almost forgot to leave a review, lol.