Nacrite [ Al2Si2O5(OH)4 ]
Material properties
| Formula | Al2Si2O5(OH)4 |
| Abbreviation | Ncr |
| Classifications | Minerals containing OH, Kaolinite (subgroup) |
| IMA Status | Grandfathered (pre-IMA), 1807 |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Related materials | Dickite, Halloysite, Kaolinite |
| Crystal symmetry | Monoclinic, Point group m, Space group Cm (#8) |
| Tags | Hydroxide , Mineral, Aluminosilicate |
Composition
| Element | Atoms |
|---|---|
| O | 9 |
| Al | 2 |
| Si | 2 |
| H | 4 |
| Total: | 17 |
Specimens of Nacrite
| Name | Owner | Materials | Phase purity | Image |
|---|---|---|---|---|
| APIH15 Nacrite / Dickite | CSIRO | Calcite, Dickite, Nacrite (70.5%), Quartz | 70.5 |
