Vivianite and siderite in lateritic iron crust: an example of bioreduction

Vivianite and siderite in lateritic iron crust: an example of bioreduction

Lateritic iron crust (LIC) samples from Padauari (AM) were analysed by XRD, optical microscopy and SEM-EDS. The equilibrium of iron minerals (IM) was studied using Eh-pH diagram. It was shown that the minerals of the LIC are goethite (alpha-FeOOH), vivianite [Fe3(PO4)2.8H2O] and siderite (FeCO3). Ca...

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Bibliographic Details
Main Authors:	Vanda Porpino Lemos, Marcondes Lima da Costa, Ronaldo Lima Lemos, Mario Sergio Gomes de Faria
Format:	Article
Language:	English
Published:	Sociedade Brasileira de Química 2007-02-01
Series:	Química Nova
Subjects:	bioreduction siderite vivianite
Online Access:	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000100008

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