Basis data mineral & terapi kristalMineralErnienickeliteDavid Hospital·CC BY-SA 4.0·WikimediaErnienickeliteNiMn4⁺3O7·3H2O crown IMA approvedKomposisiComposizione (% in peso)ONiMnOOxygen57.2%NiNickel21.0%MnManganese19.6%HHydrogen2.2%EtimologiDinamai dari Ernest Henry Nickel.Chakra sekunderheart