A coloring book by Ruchka, a two-person unit from Kirarasha, a shop that sells minerals and science-themed goods. The book is arranged like the display shelves of an old school science room or a natural history notebook.
It has ten sections: minerals and specimen boxes, fossils and man-made crystals, lab tools, mushrooms, ferns, nuts and acorns, bird nests and eggs, sea creatures, butterflies, and the bodies of the solar system.
The book has 96 pages and measures 250 mm tall by 225 mm wide. The opening pages show colored samples placed next to items such as fluorite and feathers. At the back, a guide explains "mineral coloring", a way to show the shine of stones with ordinary colored pencils.
Translated from the Japanese original.