Opal
Properties
| Formula | SiO2·nH2O |
| Abbreviation | Opl |
| Luminescence emitters | NBOHC, Singlet-triplet, Unspecified, UO2 |
| Spectra | Luminescence (1) |
| IMA Status | Grandfathered (pre-IMA), antiquity |
| Search other databases | webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Tags | Mineral, Hydrated |
Composition
| Element | Atoms |
|---|---|
| H | 3.47 |
| Si | 32.24 |
| O | 64.29 |
| Total: | 100 |
References
| Reference | Lines | Spectra | Images |
|---|---|---|---|
| Gorobets and Rogojine 2002; Gotze 2000 | 12 | 0 | 0 |
| Gorobets and Rogojine 2002 | 3 | 0 | 0 |
| Götze 2000c | 1 | 1 | 1 |
| Hamblen 2003 | 0 | 0 | 2 |
| Richter et al. 2003 | 2 | 0 | 0 |