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β-Ferric oxyhydroxide—akaganéite

Published online by Cambridge University Press:  14 March 2018

A. L. Mackay*
Affiliation:
Birkbeck College Crystallographic Laboratory, London W.C. 1

Summary

A new mineral, akaganéite, has been found in limonite deposits and has been shown to be identical with synthetic β-FeOOH. It contains no chlorine. The micro-morphology of β-FeOOH as it occurs as akaganéite and as it is produced by a solid-state transformation from FeCl2.4H2O , by the hydrolysis of dilute FeCl3 solutions, and by the hydrolysis of very concentrated FeCl3 a solutions, has been studied, chiefly by electron microscopy and diffraction. Some modes of colloidal association of the particles of β-FeOOH are described.

Type
Research Article
Copyright
Copyright © 1962, The Mineralogical Society

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