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...

solid solution series. It is isomorphous with the iron-rich end-member, fayalite. Forsterite crystallizes in the orthorhombic system (space group Pbnm)...

Factor analysis, a statistical method Fanconi anemia, a genetic disease Fayalite, an olivine mineral Femtoampere (fA) Fluorescein angiography, for eye examination...

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...

temperature. The oxidation of the olivine occurs by an initial breakdown of the fayalite component, and subsequent reaction with the forsterite component, to give...

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...

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: wüstite-magnetite:...

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...

iron-rich end-members are considered separate minerals (forsterite and fayalite). The details of these rules are somewhat controversial. For instance,...

series exists between tephroite and its analogues, the group endmembers fayalite and forsterite. Divalent iron or magnesium may readily replace manganese...

Epidote Piemontite Erythrite Esperite Ettringite Euclase Eudialyte Euxenite Fayalite Feldspar subgroup: Andesine Albite Anorthite Anorthoclase Amazonite Bytownite...

endmembers of the solid solution series: forsterite (Mg-endmember: Mg2SiO4) and fayalite (Fe-endmember: Fe2SiO4) but the ratio in olivine is not normally defined...

Phenakite – Be2SiO4 Willemite – Zn2SiO4 Olivine group Forsterite – Mg2SiO4 Fayalite – Fe2SiO4 Tephroite – Mn2SiO4 Garnet group Pyrope – Mg3Al2(SiO4)3 Almandine...

ferrosilite is stable only at elevated pressure, decomposing into quartz and fayalite at atmospheric pressure unless stabilized by magnesium or other impurities...

2H+ + 2e− FeS + H2S + CO2 → FeS2 + HCOOH The reactions are: Reaction 1: Fayalite + water → magnetite + aqueous silica + hydrogen 3Fe2SiO4 + 2H2O → 2Fe3O4...

a group or series of minerals. For example, forsterite (Mg 2SiO 4) and fayalite (Fe 2SiO 4) are the two end-members of the olivine solid-solution series...

trydimite are sometimes present along with the quartz. Biotite, augite, fayalite, and hornblende are common accessory minerals. Due to their high content...

beryl) Fabianite Farneseite Faujasite (subgroup of zeolites) Faustite Fayalite (olivine group) Feldspar (mineral group) Feldspathoid (mineral group) Felsőbányaite...

anions (a negatively charged ion). Iron silicate, Fe2SiO4, the mineral fayalite, is one of many examples of a ternary oxide. For many metal oxides, the...

forsterite and fayalite whose general formula is (Fe,Mg)2SiO4. The reaction producing methane from olivine can be written as: Forsterite + Fayalite + Water +...

in a sequence: mullite + tridymite, followed by sekaninaite and finally fayalite + clinoferrosilite (Grapes et al., 2010). Similar trends are observed for...

and olivine if it is present as Fe2+; Fe3+ cannot enter the lattice of fayalite olivine and thus for every two Fe3+ ions, one Fe2+ is used and one molecule...

solution of forsterite, the magnesium endmember of (Mg2+, Fe2+)2SiO4, and fayalite, the iron endmember, with forsterite typically making up about 90% of the...

Fluor-dravite Fdrv Favreauite Fav Ferro-katophorite Foktp Fluor-elbaite Felb Fayalite Fa Ferrokentbrooksite Fktb Fluorellestadite Fel Fedorite Fdr Ferrokësterite...

cell is somewhat larger than for the calcium free olivines forsterite and fayalite with a = 0.4815 nm, b = 1.108 nm and c = 0.637 nm, and for monticellite...

buffer. At lower oxygen levels, magnetite can form a buffer with quartz and fayalite known as the QFM buffer. At still lower oxygen levels, magnetite forms...

minerals are bronzite (an orthopyroxene), and olivine. Characteristic is the fayalite (Fa) content of the olivine of 16 to 20 mol%. They contain also 15–19%...

Scanning Electron Microscope interface image of a fayalite-pyroxene symplectite (at right) in a Martian meteorite...

Fe2O12W3 iron(III) orthotungstate Fe2P diiron phosphide 1310-43-6 Fe2SiO4 fayalite 13918-37-1 Fe3H2Na2O45Si chrysotile white asbestos 12001-28-4 Fe3O4 iron(II...

present as iron oxide (FeO) in the silicates; olivine contains 26 to 32 mol% fayalite (Fa). The most abundant minerals are hypersthene (a pyroxene) and olivine...