광물 데이터베이스와 크리스탈 테라피광물SosedkoiteDavid Hospital·CC BY 4.0·WikimediaSosedkoite(K,Na)5Al2(Ta,Nb)22O60 crown IMA approved구성Composizione (% in peso)TaOTaTantalum76.7%OOxygen18.5%KPotassium3.8%AlAluminium1.0%