Mineral veritabanı ve kristal terapisiMinerallerErditeDavid Hospital·CC BY-SA 4.0·WikimediaErditeNaFeS2·2H2OMonoclino IMA approvedBileşimComposizione (% in peso)SFeONaSSulfur35.8%FeIron31.2%OOxygen17.9%NaSodium12.8%HHydrogen2.3%