Deltalumite
Properties
| Formula | (Al0.67☐0.33)Al2O4 |
| Abbreviation | Dal |
| Classification | Spinel (subgroup) |
| IMA Status | Approved (IMA 2016-027) |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Tetragonal, Point group 42m, Space group P4m2 (#115) |
| Tags | Mineral |
Composition
| Element | Atoms |
|---|---|
| O | 4 |
| ☐ | 0.33 |
| Al | 2.67 |
| Total: | 7 |