광물 데이터베이스와 크리스탈 테라피광물Braunite IIRobert M. Lavinsky·CC BY-SA 3.0·WikimediaBraunite IICa(Mn3⁺)14SiO24 root IMA published without approval (N)구성Composizione (% in peso)MnOMnManganese63.0%OOxygen31.4%CaCalcium3.3%SiSilicon2.3%