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Broke: Diamond Pearl Platinum
Woke: DPPt
Bespoke: C CaCO3 Pt
All shells are white. Theyre made of Calcium carbonate (CaCO3). What gives them their color its called Periostracum. Its a coating of proteins produced by the animal
【霰石】霰石(aragonite、アラゴナイト)は、炭酸塩鉱物の一種。化学組成は CaCO3(炭酸カルシウム)、結晶系は斜方晶系。霰石グループの鉱物。−Wikipediaより抜粋
#手書き鉱物図鑑 #万年筆イラスト練習部