礦物資料庫與水晶療法礦物Braunite IIRobert M. Lavinsky·CC BY-SA 3.0·WikimediaBraunite IICa(Mn3⁺)14SiO24 root IMA published without approval (N)成分Composizione (% in peso)MnOMnManganese63.0%OOxygen31.4%CaCalcium3.3%SiSilicon2.3%