Corundum [ Al2O3 ]
Material properties
| Formula | Al2O3 |
| Abbreviation | Crn |
| IMA Status | Grandfathered (pre-IMA), 1714 (?) |
| Crystal symmetry | Trigonal, Point group 3m, Space group R3c (#167) |
| Classifications | Alumina, Hematite (group) |
| Members | Sapphire, Ruby, Sapphire (var. Eu doped) |
| Luminescence emitters | Ca/Mg, Cr, F+ center, Fe, Intrinsic, Unspecified |
| Spectra | Luminescence (1), SXES (1) Reflectance (1) |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Tags | Mineral, Simple oxide |
Composition
| Element | Atoms |
|---|---|
| Al | 2 |
| O | 3 |
| Total: | 5 |
References for Corundum
|
Lines | Spectra | Images | ||
|---|---|---|---|---|---|
| CSIRO SXES database | 0 | 1 | 1 | ||
| Moore & Karakus 1994 | 4 | 0 | 0 | ||
| CSIRO CL spectra 2016 | 6 | 1 | 1 | ||
| Pejcic et al. 2021 (EP2021-1148) | 0 | 1 | 0 | ||
| White 1974 | 7 | 0 | 0 |
Specimens of Corundum
| Name | Owner | Materials | Phase purity | Image | Spectra | Techniques |
|---|---|---|---|---|---|---|
| TS01 Talc | CSIRO | Clinochlore (var. Fe), Corundum (19.0%), Talc | 19.0 | 1 | Reflectance | |
| M1352 Kyanite | CSIRO | Corundum (13.2%), Kyanite, Rutile | 13.2 | 0 | — | |
| Al2O3 LE2-10 | CSIRO | Corundum | — | 1 | SXES |
