礦物資料庫與水晶療法礦物KotoitePavel M. Kartashov·CC BY-SA 3.0·WikimediaKotoiteMg3(BO3)2Ortorombico heart IMA grandfathered成分Composizione (% in peso)OMgBOOxygen50.4%MgMagnesium38.3%BBoron11.3%詞源命名來源 Kotō Bunjirō.