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Greigite is an iron
sulfide mineral with the
chemical formula Fe2+Fe3+2S4. It is the
sulfur equivalent of the iron
oxide magnetite (Fe3O4). It was first...
- to the
following reaction equation: Fe2S3 + 4 HCl → 2 FeCl2 + 2 H2S + S
Greigite, with the
chemical formula Fe2+Fe3+2S4, is a
mixed valence compound containing...
-
smell is
mainly due to its
sulphur content.
Because of the
presence of
greigite (Fe3S4, Iron(II,III) sulphide) in the mineral, it
forms brownish-pink to...
- iron and sulfur. By
increasing order of stability: Iron(II) sulfide, FeS
Greigite, Fe3S4 (cubic) Pyrrhotite, Fe1−xS (where x = 0 to 0.2) (monoclinic or hexagonal)...
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mollusc species, the scaly-foot gastropod, even uses the iron
sulfides greigite and pyrite.[citation needed] Some organisms, such as some foraminifera...
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sulfides greigite and pyrite. Each
sclerite has a soft
epithelial tissue core, a
conchiolin cover, and an
uppermost layer containing pyrite and
greigite. Prior...
- and in ****ociation with chalcopyrite, cubanite, pentlandite, pyrrhotite,
greigite, maucherite, and troilite.
Mackinawite also
occurs in
reducing environments...
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magnetite (Fe3O4), or iron
sulfide magnetosomes,
which contain crystals of
greigite (Fe3S4).
Several other iron
sulfide minerals have also been identified...
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similar to iron(II,III) oxide. It
occurs naturally as the
sulfide mineral greigite and is magnetic. It is a bio-mineral
produced by and
found in magnetotactic...
-
magnetotactic bacteria are
reported to
precipitate either magnetite or
greigite.
These crystals, and
sometimes the
chains of crystals, can be preserved...
