lepidocrocite


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Related to lepidocrocite: magnetite, goethite, Akaganeite
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Noun1.lepidocrocite - a red to reddish brown mineral consisting of iron oxide hydroxide; often found in iron ores together with goethite
iron ore - an ore from which iron can be extracted
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The pyrophosphate procedure is considered to extract primarily Fe and Al bound to organic matter, whereas dithionite may also remove additional Fe (and associated Al) from non-crystalline and finely divided crystalline oxide species, such as goethite, hematite and lepidocrocite (Courchesne and Turmel 2008).
TEHRAN (FNA)- Iranian researchers produced lepidocrocite catalytic nanoparticles which show successful performance in purification and degradation of dye pollutants found in industrial wastewater.
Goethite and lepidocrocite were identified as major corrosion products by Scanning electron microscopy while it was also revealed that major portion of lepidocrocite phase was transformed into goethite at Seaview test site.
The main minerals of this group are: Brucite, Geothite, Diaspore, Bauxite, Lepidocrocite, Manganite, Groutite, Stainierite and Chalcopanite that this project discusses the diaspore minerals and processing of them from the diaspore minerals.
En este difractograma estan presentes las siguientes fases: C: calcita, G: goethita, AN: Andradita, MG: magnetita, W: Wustita, L: lepidocrocite, HM: hematite y Q: cuarzo.
Otros productos como lepidocrocite y hematita son hallados con menor intensidad, esto posiblemente por el bajo porcentaje de estos hidroxidos presentes en la muestras analizadas; tambien debido a la mezcla con el hierro, debido a que poseen parametros similares (Rodriguez et al.
En la Figura 1 parte superior se observa el espectro DRX correspondiente al concreto AAS expuesto al ion cloruro (AASA con cloro), aqui se pueden encontrar las siguientes fases presentes: C: calcita, G: goethita, AN: Andradita, H: halita, MG: magnetita, W: wustite, L: lepidocrocite, HM: hematite y Q: cuarzo.
A Spondylus gaederopus shell from the same site contained residues of a reddish pigmentatious mass made of lepidocrocite mixed with ground bits of hematite and pyrite (which, when fresh, have a brilliant black, reflective appearance), suggesting the kind of inclusion 'for effect' that one would expect in a cosmetic preparation.
A remarkable number of other species have also been identified as inclusions in Zambian emeralds, including actinolite, tremolite, chlorite, dravite, apatite-(CaF), magnetite, hematite, quartz, fluorite, magnesite, siderite, dolomite, calcite, ankerite, niobium-rich rutile, pyrite, talc, zircon, barite, albite, lepidocrocite, glauconite, quartz, chrysoberyl, margarite, muscovite, biotite, brookite, tourmaline and chrysotile (Huong, 2008; Zwaan et al.
Gachter, "Kinetics and Mechanism of the Reaction of HZS with Lepidocrocite," Environ.
4]), Goethite ([alpha]-FeOOH), and Lepidocrocite ([gamma]-FeOOH).
1987): Cellular lepidocrocite precipitation and heavy metal sorption in Euglena sp.