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| Names | |
|---|---|
| Other names Ferrous-ferric sulfide, greigite | |
| Properties | |
| Chemical formula | FeS·Fe2S3 |
| Molar mass | 295.805 |
| Appearance | Bluish-black, pinkish |
| Density | 4.049 g/cm |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
 Y verify (what is ?)
Infobox references
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Iron(II,III) sulfide is a blue-black (sometimes pinkish) chemical compound of iron and sulfur with formula Fe3S4 or FeS·Fe2S3, which is much 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 bacteria. It is a mixed valence compound, featuring both Fe and Fe centers, in 1:2 ratio.
References
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Further reading
- Mann, Stephen; Sparks, Nicholas H. C.; Frankel, Richard B.; Bazylinski, Dennis A.; Jannasch, Holger W. (1990). "Biomineralization of ferrimagnetic greigite (Fe3S4) and iron pyrite (FeS2) in a magnetotactic bacterium". Nature. 343 (6255): 258. doi:10.1038/343258a0.
- Roberts, A (1995). "Magnetic properties of sedimentary greigite (Fe3S4)". Earth and Planetary Science Letters. 134: 227. Bibcode:1995E&PSL.134..227R. doi:10.1016/0012-821X(95)00131-U.
- 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: 536. doi:10.1007/BF01139266.
- 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: 485. doi:10.2475/ajs.294.4.485.
- Snowball, Ian; Thompson, Roy (1988). "The occurrence of Greigite in sediments from Loch Lomond". Journal of Quaternary Science. 3: 121. doi:10.1002/jqs.3390030203.
- 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: 97. doi:10.1111/j.1365-2389.1994.tb00490.x.
- Hoffmann, V (1992). "Greigite (Fe3S4): magnetic properties and first domain observations". Physics of the Earth and Planetary Interiors. 70: 288. doi:10.1016/0031-9201(92)90195-2.
- Fassbinder, Jörg W. E.; Stanjek, Helge (1994). "Magnetic properties of biogenic soil greigite (Fe3S4)". Geophysical Research Letters. 21: 2349. Bibcode:1994GeoRL..21.2349F. doi:10.1029/94GL02506.