Database minerali e cristalloterapiaMineraliNchwaningiteDavid Hospital·CC BY-SA 4.0·WikimediaNchwaningiteMn2SiO3(OH)2·H2OOrtorombico heart IMA approvedComposizioneComposizione (% in peso)MnOSiMnManganese46.2%OOxygen40.3%SiSilicon11.8%HHydrogen1.7%EtimologiaNome derivato da Nchwaning mines.Chakra secondarithird eye