Almandine [ FeII3Al2(SiO4)3 ]
Image of Almandine
Material properties
| Formula | FeII3Al2(SiO4)3 |
| Abbreviation | Alm |
| Classifications | Minerals containing SiO4, Garnet |
| Spectra | Reflectance (1) |
| IMA Status | Grandfathered (pre-IMA), 1546 (?) |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Cubic, Point group m3m, Space group Ia3d (#230) |
| Tags | Mineral, Aluminosilicate |
Composition
| Element | Atoms |
|---|---|
| O | 12 |
| Al | 2 |
| Fe | 3 |
| Si | 3 |
| Total: | 20 |
Specimens of Almandine
| Name | Owner | Materials | Phase purity | Image | Spectra | Techniques |
|---|---|---|---|---|---|---|
| M1336 Almandine | CSIRO | Almandine (98.3%), Quartz | 98.3 | 0 | — | |
| M1335 Almandine | CSIRO | Almandine (97.6%), Quartz | 97.6 | 1 | Reflectance | |
| M1413 Quartz / Grossular / Almandine | CSIRO | Almandine (23.1%), Clinochlore, Fe, Grossular, Ilmenite, Muscovite-1M, Quartz | 23.1 | 0 | — |
