Basis data mineral & terapi kristalMineralHoldawayiteDavid HospitalยทCC BY-SA 4.0ยทWikimediaHoldawayiteMn6(CO3)2(OH)7(Cl,OH)Monoclino root IMA approvedKomposisiComposizione (% in peso)MnOMnManganese54.6%OOxygen34.4%ClChlorine5.9%CCarbon4.0%HHydrogen1.2%