Eucryptite [ LiAlSiO4 ]
Images of Eucryptite
Material properties
| Formula | LiAlSiO4 |
| Abbreviation | Ecp |
| Variants | Eu doped, pinkish |
| Classifications | Minerals containing SiO4, Phenakite (group) |
| Luminescence emitters | Al centres, Eu, Fe, Mn, Si centre, Unknown, Unspecified |
| Spectra | Luminescence (1), Reflectance (1) |
| IMA Status | Grandfathered (pre-IMA), 1880 |
| Search other databases | webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Crystal symmetry | Trigonal, Point group 3, Space group R3 (#148) |
| Tags | Mineral, Synthetic, Silicate, Silicate |
Composition
| Element | Atoms |
|---|---|
| Si | 1 |
| Al | 1 |
| O | 4 |
| Li | 1 |
| Total: | 7 |
References for Eucryptite
|
Lines | Spectra | Images | ||
|---|---|---|---|---|---|
| Gorobets and Rogojine 2002 | 1 | 0 | 0 | ||
| Grekov & Chernovets 2014 | 1 | 0 | 0 | ||
| Hamblen 2003 | 0 | 0 | 2 | ||
| Kuznetsov and Tarashchan 1988 | 5 | 0 | 0 | ||
| CSIRO CL spectra 2016 | 1 | 1 | 1 | ||
| CSIRO Reflectance 2025b | 0 | 1 | 0 |
Specimens of Eucryptite
| Name | Owner | Materials | Phase purity | Image | Spectra | Techniques |
|---|---|---|---|---|---|---|
| PSP_E Eucryptite / Quartz / Kaolinite | CSIRO | Cookeite, Eucryptite (45.0%), Kaolinite, poorly crystalline, Pollucite, Quartz | 45.0 | 1 | Reflectance | |
| M2843 Quartz / Eucryptite | CSIRO | Clinochlore, Fe, Cookeite, Eucryptite (39.0%), Kaolinite, poorly crystalline, Prehnite, Quartz | 39.0 | 1 | Reflectance | |
| MES135 Albite / Eucryptite | CSIRO | Albite, Eucryptite (25.0%), Muscovite-1M, Muscovite-2M1 | 25.0 | 1 | Reflectance | |
| M1850 Quartz / Eucryptite / Cookeite | CSIRO | Clinochlore, Fe, Cookeite, Eucryptite (18.0%), Kaolinite, poorly crystalline, Quartz | 18.0 | 1 | Reflectance | |
| Eucryprite (New Hampshire) | Hamblen, Prof James O., Georgia Tech | Eucryptite | — | 0 | — |
