Fayalite [ FeII2(SiO4) ]
Material properties
| Formulas | (FeII,Mg)2(SiO4), FeII2(SiO4), Fe2SiO4 |
| Abbreviation | Fa |
| Variants | Mg, lunar |
| Classifications | Forsterite-Fayalite (series), Olivine, Minerals containing SiO4 |
| IMA Status | Grandfathered (pre-IMA), 1840 |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Orthorhombic, Point group mmm |
| Tags | Mineral, Silicate, Lunar , Silicate, Silicate |
Composition
| Element | Atoms |
|---|---|
| Si | 1 |
| Fe | 2 |
| O | 4 |
| Total: | 7 |
Specimens of Fayalite
| Name | Owner | Materials | Phase purity | Image | Spectra | Techniques |
|---|---|---|---|---|---|---|
| MES084 Labradorite / Fayalite / Enstatite | CSIRO | Enstatite, Fe, Fayalite, Mg (19.0%), Ilmenite, Labradorite, Phlogopite, Fe, Quartz | 19.0 | 0 | — | |
| Apollo 12032-366-19x | NASA | Alkali feldspar, lunar, Apatite, lunar, Baddeleyite, lunar, Fayalite, lunar, Hedenbergite, lunar, Ilmenite, lunar, Merrillite, lunar, Plagioclase, lunar, Silica, lunar, Troilite, lunar, Zirconolite, lunar | — | 6 | CL |
