Iron(II,III) sulfide
| Names | |
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| Other names
Ferrous-ferric sulfide, greigite
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| Identifiers | |
3D model (
JSmol ) |
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| ChEBI | |
| ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| FeS·Fe2S3 | |
| Molar mass | 295.805 |
| Appearance | Bluish-black, pinkish |
| Density | 4.049 g/cm3 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Iron(II,III) sulfide is a blue-black (sometimes pinkish[mixed valence compound, featuring both Fe2+ and Fe3+ centers, in 1:2 ratio.
Crystal structure
The crystallographic unit cell is cubic, with space group Fd3m. The S anions form a cubic close-packed lattice, and the Fe cations occupy both tetrahedral and octahedral sites.[1][2]
Crystal structure of iron(II,III) sulfide projected along the [110] direction
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Emphasis on the SFe4 tetrahedra. -
Emphasis on the FeS4 tetrahedra -
Emphasis on the FeS6 octahedra
Magnetic and electronic properties
Like the related oxide
References
- ISBN 978-0962209703. Retrieved December 5, 2011.
- ISBN 0-521-21489-0.
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Further reading
- Mann, Stephen; Sparks, Nicholas H. C.; S2CID 4351424.
- Roberts, A (1995). "Magnetic properties of sedimentary greigite (Fe3S4)". Earth and Planetary Science Letters. 134 (3–4): 227–236. .
- Heywood, B. R.; Bazylinski, D. A.; Garratt-Reed, A.; Mann, S.; Frankel, R. B. (1990). "Controlled biosynthesis of greigite (Fe3S4) in magnetotactic bacteria". Naturwissenschaften. 77 (11): 536–538. S2CID 28912546.
- Reynolds, R. L.; Tuttle, M. L.; Rice, C. A.; Fishman, N. S.; Karachewski, J. A.; Sherman, D. M. (1994). "Magnetization and geochemistry of greigite-bearing Cretaceous strata, North Slope basin, Alaska". American Journal of Science. 294 (4): 485–528. .
- Snowball, Ian; Thompson, Roy (1988). "The occurrence of Greigite in sediments from Loch Lomond". Journal of Quaternary Science. 3 (2): 121–125. .
- Stanjek, H.; Fassbinder, J. W. E.; Vali, H.; Wagele, H.; Graf, W. (1994). "Evidence of biogenic greigite (ferrimagnetic Fe3S4) in soil". European Journal of Soil Science. 45 (2): 97–103. .
- Hoffmann, V (1992). "Greigite (Fe3S4): magnetic properties and first domain observations". Physics of the Earth and Planetary Interiors. 70 (3–4): 288–301. .
- Fassbinder, Jörg W. E.; Stanjek, Helge (1994). "Magnetic properties of biogenic soil greigite (Fe3S4)". Geophysical Research Letters. 21 (22): 2349–2352. .