Mineral collecting is a modern-day treasure hunt! Ruri, a high school girl who loves jewelry and accessories, dives into the world of mineral collecting, going to mountains, rivers, and caves. Volume 1 features many minerals such as quartz, garnet, pyrite, gold dust, and fluorite. The collection scenes using specialized tools such as panning plates, hammers, and topographical maps are also full of charm. A full-fledged science adventure based on the solid knowledge of an author who has studied mineralogy!
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