Anorthoclase [ (Na,K)AlSi3O8 ]
Material properties
| Formula | (Na,K)AlSi3O8 |
| Abbreviation | Ano |
| Classification | Alkali feldspar |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Triclinic, Point group 1, Space group P1 (#2) |
| Tags | Variety, Aluminosilicate |
Composition
| Element | Wt% |
|---|---|
| Na | 6.48 |
| K | 3.67 |
| Al | 10.13 |
| Si | 31.65 |
| O | 48.07 |
| Total: | 100 |
Specimens of Anorthoclase
| Name | Owner | Materials | Phase purity | Image |
|---|---|---|---|---|
| NR_ANT_1 Anorthoclase | CSIRO | Anorthoclase (99.5%) | 99.5 | |
| M1848 Anorthoclase | CSIRO | Anorthoclase (99.4%) | 99.4 | |
| M1271 Anorthoclase | CSIRO | Albite, Anorthoclase (94.5%) | 94.5 | |
| MES119 Augite / Labradorite / Anorthoclase | CSIRO | Anorthoclase (10.6%), Armalcolite, Augite, Hematite, Labradorite, Orthoclase | 10.6 |
