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Ferrihydrite (Fh) is a
widespread hydrous ferric oxyhydroxide mineral at the Earth's surface, and a
likely constituent in
extraterrestrial materials. It...
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coercivities for
hematite have been
achieved by dry-heating a two-line
ferrihydrite precursor prepared from solution.
Hematite exhibited temperature-dependent...
- (α-FeOOH) akaganéite (β-FeOOH)
lepidocrocite (γ-FeOOH)
feroxyhyte (δ-FeOOH)
ferrihydrite (Fe5HO8 · 4 H2O approx., or 5 Fe2O3 · 9 H2O,
better recast as
FeOOH ·...
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control protein Family history FH, a gene that
encodes the
enzyme fumarase Ferrihydrite (Fh), a
widespread hydrous ferric oxyhydroxide mineral McDonnell FH Phantom...
- and
amorphous colloidal materials,
including allophane,
imogolite and
ferrihydrite. In the
World Reference Base for Soil
Resources (WRB),
andisols are known...
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create ferrihydrite ions.
These ferrihydrite ions are
transported through ion
channels to the
tooth surface. The build-up of
enough ferrihydrite ions leads...
- soil types. Soil
magnetism increases when soil
minerals goethite and
ferrihydrite convert to
maghemite on
exposure to heat.
Temperatures sufficient to...
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which also
occurs naturally as the
mineral magnetite; Iron
ochre or
ferrihydrite: 338 — Fe2O3·0.5H2O, is a
widespread hydrous ferric oxyhydroxide mineral...
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alters into
iddingsite (a
combination of clay minerals, iron
oxides and
ferrihydrite)
readily in the
presence of water.
Artificially increasing the weathering...
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ferric hydroxide" or limonite. Much of this
material may be the
mineral ferrihydrite (Fe2O3 H2O). This
dehydration or "aging"
process has been
found to be...
