• Thumbnail for Fayalite
    Fayalite (Fe 2SiO 4, commonly abbreviated to Fa) is the iron-rich end-member of the olivine solid-solution series. In common with all minerals in the olivine...
    6 KB (515 words) - 15:03, 3 May 2023
  • Thumbnail for Forsterite
    solid solution series. It is isomorphous with the iron-rich end-member, fayalite. Forsterite crystallizes in the orthorhombic system (space group Pbnm)...
    14 KB (1,409 words) - 18:04, 27 April 2024
  • Thumbnail for Olivine
    4) and fayalite (Fe-endmember: Fe 2SiO 4). Compositions of olivine are commonly expressed as molar percentages of forsterite (Fo) and/or fayalite (Fa) (e...
    31 KB (3,174 words) - 12:54, 15 April 2024
  • Thumbnail for Peridot
    temperature. The oxidation of the olivine occurs by an initial breakdown of the fayalite component, and subsequent reaction with the forsterite component, to give...
    16 KB (1,628 words) - 09:46, 3 May 2024
  • Thumbnail for Mineral redox buffer
    Fe3O4 + O2 ⇌ 6 Fe2O3 NiNiO: nickel-nickel oxide: 2 Ni + O2 ⇌ 2 NiO FMQ: fayalite-magnetite-quartz: 3 Fe2SiO4 + O2 ⇌ 2 Fe3O4 + 3 SiO2 WM: wustite-magnetite:...
    10 KB (1,182 words) - 22:52, 8 April 2024
  • a slurry). Such is the case, for example, with the olivine (forsterite-fayalite) system, which is common in Earth's mantle. In chemistry, materials science...
    10 KB (1,146 words) - 20:25, 9 February 2024
  • endmembers of the solid solution series: forsterite (Mg-endmember: Mg2SiO4) and fayalite (Fe-endmember: Fe2SiO4) but the ratio in olivine is not normally defined...
    15 KB (1,855 words) - 01:00, 12 April 2024
  • Epidote Piemontite Erythrite Esperite Ettringite Euclase Eudialyte Euxenite Fayalite Feldspar subgroup: Andesine Albite Anorthite Anorthoclase Amazonite Bytownite...
    13 KB (866 words) - 05:32, 11 March 2024
  • Thumbnail for Mineral
    iron-rich end-members are considered separate minerals (forsterite and fayalite). The details of these rules are somewhat controversial. For instance,...
    110 KB (13,012 words) - 21:01, 19 May 2024
  • Ferrohortonolite is a mineral variety in the olivine series composed of 70% to 90% fayalite and 30% to 10% forsterite or Fe/(Fe+Mg) ratio of 0.7 to 0.9. It is from...
    2 KB (87 words) - 03:22, 2 October 2023