Melanterite - Wikipedia Melanterite is a mineral form of hydrous iron (II) sulfate: FeSO 4 ·7H 2 O It is the iron analogue of the copper sulfate chalcanthite It alters to siderotil by loss of water It is a secondary sulfate mineral which forms from the oxidation of primary sulfide minerals such as pyrite and marcasite in the near-surface environment
Melanterite: Mineral information, data and localities. - mindat. org Melanterite Group Iron analogue of boothite and zincmelanterite Melanterite is a hydrated iron sulphate formed after the decomposition of pyrite or other (metal-)iron sulphide minerals due to the action of surface waters
Melanterite (iron II sulfate) - Properties, Photos and Occurence Melanterite is the most famous member of melanterite group sulfates It is a divalent iron sulfate heptahydrate FeSO 4 7H 2 O, often known as iron (II) sulfate or ferrous sulfate Melanterite forms monoclinic crystals However, natural crystalline forms are quite rare
Melanterite Mineral Data Secondary mineral formed by the oxidation of iron sulfide minerals Link to MinDat org Location Data From the Greek melas, "black " Comments: Deep greenish blue encrustation of melanterite The pistanite variety is copper-bearing where Cu replaces some of the Fe in the crystal structure Location: Patagonia District, Arizona, USA
Melanterite – WGNHS – UW–Madison Melanterite forms fibrous to stalactitic masses, concretions and crusts due to the oxidation of sulfides such as marcasite and pyrite It is commonly intermixed with other sulfates including jarosite, copiapite gypsum, alunogen, epsomite and pickeringite
40 Facts About Melanterite What is melanterite? Melanterite, a strikingly green mineral, forms from the oxidation of iron sulfides This mineral, often found in abandoned mines, can appear in various shades of green, blue, or even white Why is melanterite important? It holds significance in both geology and industry
Melanterite - Encyclopedia Melanterite is a hydrated iron sulfate that forms by alteration of pyrite and marcasite under very acidic pH conditions
Melanterite - ClassicGems. net Melanterite is a hydrated iron sulphate mineral formed after the decomposition of pyrite or other iron minerals due to the action of surface waters It is often found in mines as a post-mining formation on mine walls as encrustations or stalactites
MELANTERITE (Hydrated Iron Sulfate) - Amethyst Galleries Chemistry: FeSO 4 - 7H 2 O, Hydrated Iron Sulfate Uses: A very minor ore of iron and as mineral specimens Melanterite is one of only a few water soluble sulfate minerals It forms in the near-surface secondary oxidation zone of ore deposits usually late in their development