Alkali feldspar
Properties
| Formula | (Na,K)AlSi3O8 |
| Abbreviation | Afs |
| Variant | lunar |
| Classification | Feldspar (group) |
| Members | Rubicline, Albite, K feldspar, Sanidine, Anorthoclase, Kokchetavite, Ferrisanidine |
| Luminescence emitters | Si-O, Unspecified |
| Spectra | Luminescence (1) |
| IMA Status | Approved group |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Tags | Subgroup, Aluminosilicate, Aluminosilicate |
Composition
| Element | Atoms |
|---|---|
| Al | 1 |
| Si | 3 |
| O | 8 |
| Na | ~0.5 |
| K | ~0.5 |
References
| Reference | Lines | Spectra | Images |
|---|---|---|---|
| CSIRO/WUStL Apollo 12 (2019), luminescence | 1 | 1 | 0 |
| CSIRO/WUStL Apollo 12 (2019), luminescence, other | 0 | 1 | 0 |
| White 1974, reflectance | 1 | 0 | 0 |
| White 1974, reflectance, other | 2 | 0 | 0 |