Basis data mineral & terapi kristalMineralBraunite IIRobert M. Lavinsky·CC BY-SA 3.0·WikimediaBraunite IICa(Mn3⁺)14SiO24 root IMA published without approval (N)KomposisiComposizione (% in peso)MnOMnManganese63.0%OOxygen31.4%CaCalcium3.3%SiSilicon2.3%