Fe
O
H
Ball and Stick
Stick
Spacefill
Polyhedral
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Ferrihydrite
Ferrihydrite is a ubiquitous iron mineral in soils and sediments. Its nanocrystalline size has only added to the difficulties in resolving its three-dimensional structure, not withstanding decades of attempts.
Highlighting Features
An iron (Fe3+) atom, coordinated with six oxygens in an octahedral arrangement Iron (Fe3+) atoms coordinated with six oxygens in an octahedral arrangement An iron (Fe3+) atom coordinated with four oxygens in an tetrahedral arrangement Iron (Fe3+) atoms coordinated with four oxygens in an tetrahedral arrangement Near neighbors of tetrahedral iron Single unit cell 3x3x3 crystal latticeDistribution
Ferrihydrite is a ubiquitous iron mineral in soils and sediments.
Michel, F.M. et al. 2007. The Structure of Ferrihydrite, a Nanocrystalline Material. Science. Published online 24 May 2007; 10.1126/science.1142525.
Penn, R.L. 2007. Resolving an Elusive Structure. www.sciencexpress.org / 24 May 2007 / Page 2/ 10.1126/science.1144002