Basis data mineral & terapi kristalMineralRibbeiteErik Vercammen·CC BY 3.0·WikimediaRibbeiteMn2⁺5(SiO4)2(OH)2 IMA approvedKomposisiComposizione (% in peso)OSiMnOOxygen58.6%SiSilicon20.6%MnManganese20.1%HHydrogen0.7%