• Thumbnail for Greigite
    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...
    7 KB (562 words) - 20:55, 22 December 2023
  • 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)...
    1 KB (128 words) - 23:21, 14 March 2022
  • Thumbnail for Exoskeleton
    mollusc species, the scaly-foot gastropod, even uses the iron sulfides greigite and pyrite.[citation needed] Some organisms, such as some foraminifera...
    19 KB (2,136 words) - 16:12, 13 July 2024
  • 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...
    7 KB (612 words) - 05:06, 25 December 2023
  • Thumbnail for Mackinawite
    and in association with chalcopyrite, cubanite, pentlandite, pyrrhotite, greigite, maucherite, and troilite. Mackinawite also occurs in reducing environments...
    12 KB (1,014 words) - 20:49, 9 January 2024
  • 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...
    3 KB (219 words) - 23:36, 23 January 2024
  • Thumbnail for Kala namak
    smell is mainly due to its sulfur content. Because of the presence of greigite (Fe3S4, Iron(II,III) sulfide) in the mineral, it forms brownish-pink to...
    9 KB (968 words) - 19:47, 26 June 2024
  • Thumbnail for Magnetofossil
    about the environments in which greigite magnetofossils are created and the magnetic properties of the preserved greigite particles. Existence of magnetotactic...
    13 KB (1,564 words) - 14:01, 20 November 2023
  • Thumbnail for Scaly-foot gastropod
    sulfides greigite and pyrite. Each sclerite has a soft epithelial tissue core, a conchiolin cover, and an uppermost layer containing pyrite and greigite. Prior...
    63 KB (6,299 words) - 13:29, 9 July 2024
  • Thumbnail for Magnetosome
    magnetite (Fe3O4), or iron sulfide magnetosomes, which contain crystals of greigite (Fe3S4). Several other iron sulfide minerals have also been identified...
    14 KB (1,717 words) - 03:27, 13 August 2023