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Mackay, A. L. (1960) β-Ferric Oxyhydroxide. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (250) 545-557 doi:10.1180/minmag.1960.032.250.04

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Reference TypeJournal (article/letter/editorial)
Titleβ-Ferric Oxyhydroxide
JournalMineralogical Magazine and Journal of the Mineralogical Society
AuthorsMackay, A. L.Author
Year1960 (September)Volume32
Issue250
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_32/32-250-545.pdf+
DOIdoi:10.1180/minmag.1960.032.250.04
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Mindat Ref. ID5575Long-form Identifiermindat:1:5:5575:2
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Full ReferenceMackay, A. L. (1960) β-Ferric Oxyhydroxide. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (250) 545-557 doi:10.1180/minmag.1960.032.250.04
Plain TextMackay, A. L. (1960) β-Ferric Oxyhydroxide. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (250) 545-557 doi:10.1180/minmag.1960.032.250.04
In(1959) Mineralogical Magazine Vol. 32 (250) Mineralogical Society
Abstract/NotesSummaryThe crystallographic properties of the hydrated iron oxide obtained by the hydrolysis of FeCl3 are described. The characterizing X-ray powder pattern can be indexed on a tetragonal unit cell with a 10·48 and c 3·023 Å. This cell is shown to contain eight formula units of FeOOH but Cl- or other anions are necessary for the crystallization of the material The structure is that of hollandite or α-MnO2. The unit cell has been confirmed by electron diffraction from single crystals having dimensions about 5000 × 500 × 500 Å. and twinning, which produces hexagonal stars, has been studied. On heating, the structure breaks down and recrystallizes as α-Fe2O2, probably with an intermediate stage involving a spinel phase.

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