Geology
Geology studies the composition, structure and history of the Earth: rocks, minerals, soils and the processes that shape them. In Dr Stone, it supplies civilisation with its raw materials, from the limestone Senku turns into lime to the deposits he prospects to restart chemistry.
Entries in this discipline
Clay and Kaolin
In The Apothecary Diaries, clay is used as makeup. We explain kaolinite, its layered structure, its absorbent power, and its uses.
Hot Springs and Sulfur
In The Apothecary Diaries, hot springs provide sulfur for gunpowder. We explain the geothermal gradient, the smell, and native sulfur deposits.
Calcium Carbonate
Senku presents calcium carbonate as civilization's cornerstone: we explain CaCO₃, the lime cycle, and its uses in agriculture and construction.